₦airaland Forum

labodinho: @Ortarico,bro we've gat to chat,u've gat a 2go or fbk id??

I've added you boss, Yemmy and Mastermynd. Thanks for yesterday's chat. . . . . @farano, wishing all DEs good-luck. Goood mornin' all!!!

oladoya: let someone check maths question jamb no 40 and 41 and tell me weither there is answer. Dibu get a lot of explanation

oladoya: X is a seven letter word, X is
imposible 4 God, new born
babies lyks X more dan
breast milk, d poor av X & d
rich luk for X 4rm the poor, if
u eat X u will die, X is more
importnt dan ur life, X grows
like grass, i swear on my life
i will give u X if u get the
answer. Wat is X?

So na d question be that?

rashywire: re u d jamb registrar or w@? u don cram our course abi? no p. we'll meet wen we get there

Lolzz. . . .abi nah

Oladimeji97: Lurve, beembolah,yemmy,donmayor, calculusf(x),dr asiko,ortarico,olodoya,mastermynd,hillsnite,ajani,davefirst,rasywire,emekakelvin,rapmaestro ... Which courses are you guys going in for?

Mine is Eco oo. . . .lemme tell you the ones I know:
Yemmy- Physiotherapy
Oladoya- Economics
Ajani- Economics
Farano- DE sha
Labodinho- I don forget
Oyestephen- Medicine
Salzyswaag- Chemical engineering
Dr Asiko- Medicine
Rashywire- Electrical engineering
Calculus(fx)- Mechanical engineering (UNIBEN)
Mr calculus- Chemical engineering (UNIBEN)
Eni orisha- English education
Lurve- Law
Oladimeji- Architecture
Auroroe- I don forget
Beembohlar- Accounting
Godwin88- DE sha
Top spot- Economics
Emekakelvin- Economics
Donmayor- Tutor
Tobexin- Tutor
Dr. Genius- Tutor/M.Sc
Hillsnite- I no know
Davefirst- I no know
Rapmaestro- I no know. . . . . . . . . .that's all but be like say na Eco plenty pass sha. . . . . SUCCESS to everyone!!!

Mastermynd- Psychology

Gooood mornin' all!!!

oladoya: diameter is 2r and not r square

Sure I know boss, I used it there to represent the increase in change

Calculusf(x):
...1.draw a circle and a chord AB inside it.a straight line from the centre to the point where the chord meet the circle (A)=radius of the circle=5...also,a straight line from the centre of a circle which makes a right angle to the chord bisects it at O...so the place is 3cm from (A)...which makes a triangle OAB...with right angle at O...which makes a right angle triangle...so using pythagora's theorem...the answer=4cm...2...the size is 6cm by 8cm=48cm square...and increased by half...up and down...then the length is 9cm...both sides,the breath is 7cm=63cm square...the difference is 15cm square which shows the area...3...for a complete 1 hour,the tips rotate for complete revolution=360' and a half hour is half a revolution=180'...add it to give 540'...4...the area of a sphere is 4¥r^2.where ¥ is equal to pie..and r=d/2...substitute that,therefore s=¥d^2...¥ is a constant...therefore s is proportional to d^2 and s=kd^2...(1)if s is increased by 44%...therefore 144s/100=kd'^2...(2)...divide 2 by 1...therefore (d'/d)^2=144/100.find the square root of both sides...therefore d'/d=12/10=120/100...therefore d is increased by 20%...5...selling price is 45...and a profit of 8%...therefore is 108x/100=45...x=125/3 where x is the cost price...the price he should sell it to gain 32% will be equal to 132/100 * 125/3=55...so the answer is #55...

Well done Prof!

4. S.A of a sphere= 4/\r^2. NB: r^2 is diameter...
Let A2 = r^2 represent the increase, A1 = r^1 the initial area:

:. A2/A1 = r^2/r^1
1.44/1 = r^2/r^1
r^2 = 1.44
r = 1.2
:. The increase is 20%. . . . . .D is the best answer

3. To get the angle in minutes, simply convert 1 1/2 to degree:
3/2 * 360= 540 degree. But if it's to a degree in hours: 3/2/12 * 360= 45 degree. . . . . . . .C is the best answer

2. Area of the frame= External area - Internal area
Internal Area= 8*6 = 48
External area= 9*7= 63
:. A of frame= 63 - 48
=> 15cm^2. . . . . .
B best answer

@farano:
1. A chord of length 6cm is drawn in a circle of radius 5cm.find d distance of d chord from d centre of d circle a)2.5cm b)3.0cm c)3.5cm d)4.0cm.......2. A rectangle picture 6 cm by 8cm is enclosed by a frame 1/2cm wide.calculate d area of d frame a)20sqcm b)15sqcm c)13sqcm d)16sqcm.......3. In one &a half hours,d min hand of a clock rotates through an angle of a)90 b)180 c)540 d)450......4. If d surface area of a sphere is increased by 44%,find d % increased in d diameter a)44 b)30 c)22 d)20.......5. By selling an article for #45.00 a man makes a profit of 8% for how much should he hav sold it in order to make a profit of 32%? A)180.00 b)58.00 c)55.00 d)63.00

@farano:
pls o Maths gurus in d house;dr genuis,labodinho,yemmy,donmayor, (calculus)^2,dr asiko,ortarico,oladimije,olodoya,mastermynd, eni osha,hillsnite,ajani,davefirst,rasywire,emekakelvin,rapmaestro, lurve,beembola et al;should help in tackling dose questions.some ans were not provided & me no sabi maths o.helppppppppppppppp

Let's go......

1. Length of the chord = 6cm
Radius = 5cm
But the chord in the circle forms a right-angled triangle when finding it's distance from the centre of the circle.
:. New length= 3cm
Radius= 5cm
Using pythagoras theorem:
x^2= 5^2 - 3^2
x^2= 25 - 9
x^2= 16
x = 4.0cm. . . . . . . . .D is the best answer

Calculusf(x):
To know if a number is divisible by 9...just add the numbers together,if it's a multiple of 9.then 9 will surely go in it...e.g.747...you say 7+4+7=18...18 is a multiple of 9...then 9 is a factor of 747...what about 735...add the numbers 7+3+5=15...15 is not a multiple of 9...therefore 9 is not a factor of 735.THE SAME RULE APPLY FOR 3...THEREFORE 735 IS A MULTIPLE OF 3 BECAUSE 15 IS A MULTIPLE OF 3

Does this also apply to all numbers?

^^^^^^
Well just tried my luck ni, govt nor be my food. . . . . @Ajani i see you.

dr.genius:
i had my first degree there and i'm currently doing my masters. we might meet if you are coming to the faculty of science

All right boss but i'm not in the sciences, my discipline is in the social sciences. Anyway, till then boss.

dr.genius:
its me dr.genius not oladoya anyway. make sure u get into the *UNIVERSITY OF FIRST CHOICE AND THE NATION'S PRIDE*

I know boss. I was complimenting him for his sketch and write-up. By God's grace I'll make it! Boss, is Unilag your alma-mater?

eni orisha: PLS, gv d house convincing explanation on why no 9 ans. should be 'a few'. given d fact that 'salt' is an uncountable noun. happy sunday!

You're right, there's the need for an explanation, it might be from the past question she used. The funniest thing is that I saw number 5 and 10 in a past question which says it's secretive and miracle respectively....

dr.genius:
i am also sorry for my initial statements...... we all learn from each other *GREAT AKOKITES*

Indeed and in truth!
Hapic Sunday all. . . . .Prof Oladoya, nice one.

Fynestboi: OBAFEMI AWOLOWO UNIVERSITY 2010 POST UME TEST

1. The Authur Richards constitution was designed to last for;
a. Nine years b. Five years
c. Twelve years d. Six years

2. Under the 1963 Republican Constitution, the President exercised:
a. Judicial powers b. Executive powers c. Norminal powers d. Concurrent powers

3. The Clifford constitution was notable for
a. Amalgamating the Northern and Southern provinces
b. Introducing indirect rule
c. Establishing the legislative council
d. Creating a Northern majority in the legislative council

4. In a federal constitution, legislative powers that are shared by two levels of
government are referred to as
a. Exclusive b. Extra-ordinary
c. Residual d. Concurrent

5. During the period of 1960-1966, Nigeria
was governed under the:
a. Presidential system of government
b. Westminster system of government
c. Confederal system of government
d. Unitary system of government

6. Which of the following in the Sokoto
Caliphate performed functions similar to
that of the Bashorun in Oyo kingdom ?
a. Waziri b. Galadima
c. Ma’aji d. Alkali

7. In the Igbo political system, the most senior member of thecouncil of elders is the
a. Okpara b. Obi c. Eze d. Ofo

8. A non-monarchicalstate can best be described as a:
a. public b. Confederation
c. Nation d. Federation

9. Proportional representation favours
a. Multi-party system
b. Three-party system
c. Two-party system
d. One-party system

10. One major factor that differentiates the presidential from the parliamentary system is:a. Separation of powers
b. Judicial independence
c. Passage of bills
d. Party system

11. A state with a hegemonic party is one in which:
a. There is one dominant party
b. There is no opposition party
c. There is only one party
d. Other parties are officiallyrecognized.

12. In the First Republic, politics in Northern Nigeria was dominated by
a. NEPU b. UMBC c. NCNC d. NPC

13. The creation of classless society is the ultimate aim of
a. Communism b. Socialism
c. Fascism d. capitalism

14. Herbert Macaulay was the first President of
a. NCNC b. AG c. UMBC d. NEPU

15. A special election organized to decide on
a political issue is known as
a. Plebiscite b. By election
c. General election
d. Primary election

16. Equality before the law is a component of
a. Separation of powers
b. Checks and balances
c. The rule of law d. Constitutional law

17. In the process of implementing laws, the executive sometimes performs
a. Judicial functions
b. Bureaucratic function
c. Oversight function
d. Legislative function

18. Which of these was the main organ of the defunct OAU?
a. The Liberation Committee
b. The Council of Ministers
c. The Commission for Mediation,
Conciliation and Arbitration
d. The Assembly of Heads of State and
Government

19. Nigeria hosts of the Commonwealth
Conference which eventually led to the
Independence of
a. Mozambique b. Namibia
c. Zimbabwe d. Malawi

20. Multilateralismin Nigeria’s foreign policy entailsa. Africa being the centre piece of Nigeria’s foreign policy
b. Non-aligned posture in international affairs
c. Quest for a permanent membership of the UN securitycouncil
d. Membership of international organization

21. The ancient Greeks practiced
a. Direct democracy
b. Representative democracy
c. Liberal democracy
d. Benevolent dictatorships

22. Fascism originated from:
a. Greece b. Italy
c. China d. Germany

23. According to Karl Marx, the mode of production that precede Capitalism is
a. Mercantilism b. Feudalism
c. Socialism d. Communalism

24. One of the destructive features of a democracy is that it
a. connotes civil rule
b. facilitates popular participation
c. Provides for a unicameral legislature
d. Is not associated with one party state

25. Serfs are the dominated class under:
e. Capitalism b. Socialism
c. Fascism d. feudalism

1. B
2. C
3. C
4. D
5. Parliamentary system
6. B
7. A
8. D
9. A
10. A
11. A
12. A
13. A
14. A
15. A
16. C
17. D
18. D
19. B
20. D
21. B
22. B
23. C
24. D
25. D

promisechild: u tried it quite late but ur score is 9/10 90%

ok boss

promisechild: 1.Liberia became independent in
A.1847 b.1858 c.1941 d.1936

2.The last governor election forum election was held in

A.may 19 b.may 21 c. may 24. D.may 25

3.The present nigeria national anthen arise o compatriot was composed in what year

A.1960 b.1963 c.1978 d. 1951

4.NAFDAC was established in

A.1990 b.1991 c 1993 d.1999

5.Economic diplomacy was introduced during the era of

A.tafawa balewa b.ibrahim babaginda c.buhari d.yakubu gowon

6.which of the following country does not belong to west africa

A.cape verde b.tazania c.liberia d.bukina faso

7.which of the following country recognised biafra republic

A.ghana b.comoro island c.eritea d.ivory coast

8.NCBWA was formed in Ghana in

A.1917 b.1919 c. 1920 d. 1923

9.The one time british prime minister that refused the request of the NCBWA was

A.magaret thatcher B.lord milner c.john major d.robert edison.

10 The united states of america flag has how many star

A.15 b.20 c.50 d.10



More loading

Greetings house. . . . .Lemme try these current affairs questions:

1. A
2. B
3. C
4. C
5. B
6. B
7. D
8. B
9. B
10. C

@farano:
1. I know i-read,but I am tired a)may b)ought to c)would d)could....2. How I wish i-my mother's advice a)had heeded b) have heeded c)heed d)will heed....3. Azuka sings beautifully,a)isn't it b)doesn't she c)does she d)isn't she....4. All d people in d bus died in that- accident a)serious b)reckless c)fatal d)dangerous....5. Mr peter will neva tell u everything:he is very-a)quite b)realistic c)secretive d)reserved....6. Cosmas is a very good friend on-i can rely a)who b)whose c)which d)whom....7. I don't know what to do with these children.They are always fighting-a)themselves b)myself c)one another d)each other....8. Tunde couldn't hav said a thing like that,-a)could he b)did he c)can he d)would he....9. Please let me have-salt in my soup a)few b)a little c)a small d)a few..10. What a -!The more u look,d less u see a)wonder b)miracle c)challenge d)paradox

1.B 2.A 3.B 4.C 5.C 6.D 7.C 8.A 9.B 10.B

biolabee: Oga sir... I am humble o///

Well done Sir

yemmytcm: official prayer loading

Oga, abeg do am quick to revive the espirit de corps!

oladoya: yes ooo formerly we see ourselve as brothers planing together on how to remove the post ume's spinal cord, but now some ppl have turn this place to show off ground. I will enjoin us to please lets find remedy to dis deleterious act of ours as it night be pernicious to the foundation on which this thread was form.(E&OE)

Well said Prof. In addition, the cause of the commotion here is the intrusion of some milling mass of nairaland members that did no intro and are oblivious of our unanimous objectives. Thereby making the thread diverting all its set objectives, asking nugatory questions and giving a lack-lustre post-utme prep. We need to deal with the exigencies of confusion. Espirit de corps!

@farano:
Ajani 7/10, oladoya 5/10, ortarico 4/10

shuuuuu. . . . .madam farano, na so i poor reach for oyinbo? Anywayz, that's English for me. Too many similar options, I pray I overcome the problem befor the D-day!

yemmytcm: oga ade,by the time you are thru with diverging and converging of everything,add me on 2go,(Adesiyan94)...and as you dey see me so oo,i too knw math o,over-know dey worry me gan sef.....everybody don run away....#my hands on my chest#...it is well

ok boss, I'll do that.

Mr Calculus: Thumbs up ortarico..kudoz!!!.
i love ur speech i tink dis thread is starting 2 turn frm a place of learning 2 a challange arena wh is nt suppose 2 b so...plz guys u all should play cool

Thanks boss, I refuse to be dispirited. Let the brotherly love continue.....

@farano:
Choose d option opposite in meaning 1.our govt is making DETERMINED efforts to eradicate illiteracy a)compulsory b)ineffective c)innocent d)unreliable....2. Unilag has a large INTAKE each year a)rejection b)product c)output d)turn-out..3. Rita flogged d girl RELUCTANTLY a)eagerly b)calmly c)furiously d)laboriously....4. D demonstrators hav refused to CALL OFF their action a)ask about b)forget about c)examine d)inquiry about....5. D judge blamed d PLAINTIFF for misleading d court a)defendant b)compliment c)accused d)prosecution...6. D policeman was asked to INVESTIGATE d matter a)ask about b)forget about c)examine d)inquire about....7. Okoli was AGITATED when d sad news of his father's death was broken to him a)excited b)calm c)unreasonable....8. Joy SOBBED by d door because she had lost her mother's precious necklace a)cried b)smiled c)wept d)laughed...9. His ANTIPATHY to religious ideas makes him unpopular a)remedy b)consciousness c)hostility d)receptiveness....10. For millions of years, d world's resources hav remained BOUNDLESS a)unlimited b)scarce c)indomitable d)obscure

1. B
2. B
3. A
4. D
5. A
6. B
7. A
8. D
9. D
10. B

yemmytcm: #raises eye brow# really ? Abeg,so where are we,uniabuja shey....

Lolzzz. . . . . .you fit make person laf mess. We need sanity back oo....

oladoya: Pls letsomebody show me unilag thread cos it seems have missed my way. I cant just undersatnd what am seeing here it seems some redundant are now in here. @mr ortarico,leme identify you wen u log in on 2go so that we can talk i have somethings to say and any of you my ogas that have the ability of midnight jackin, dis my id card olalere310

ok boss. . . . . . .it's true that this is no more unilag's admission thread #confused#

dr.genius:
i am a gold medalist at the international mathematics olympiad and this question fetched me the perfect score prize, and i would like to tell you that not everything requires calculus........... Try this question, how many ways can u arrange 19 girls so that no girk has a taller girl in front and behind her......i bet you cannot solve it, besides i have my first degree in pure mathematics......lastly did u try ur formula to see that it was extremely stupid......*pride is before a fall*

Well boss, I congratulate you on your achievements! Honestly, when the question was asked, I knew the series was divergent that it can only converge if x<1 and the summation x^n-1 where x starts from 1 to infinity, but for the extreme derivation of formulae I was confused and initiated calculus.
I'm not fit in the position to argue with you boss but if you had used your final formula to arrive at the answer I would have paid obeisance. Besides, I'm not competing with you I come here only for some contributions and attempting questions that're likely to be asked. Therefore, giving me to understand that I can't really get it by using calculus supposed to have been done like a teacher to his student not derogatorily.
Now to your question on arrangement. It is invalid to me cause you didn't give the number of the short girls for the operation and I guess both questions gave you tough time as their likes trouble even Profs........So, boss someone like you is also needed at the maths gurus thread for contributions. As for the pride, it's far from me.

dr.genius:
your formula is definitely wrong because the series above does not converge and even if it converges, the region of convergence would be infinity, therefore it has no sum to infinity, now to the solution
1+X+X^2+X^3+X^4...................+X^n, but we can deduce that this is a geometric progression with is rate beign 1 , this poses another problem because if u use the normal formula it wont work we can also see that for (1<x<2) the formula X^n+1 will work but for larger integers its useless , we can now clear off the one by saying
1+( X+...............x^n) the integers in the bracket hav created another geometric progression with a=x, and r=x , we can now give the sum of our subset series as
S= x(x^m-1)/(x-1) where m=n-1

the final formula
Sn= 1+ x(x^m-1)/(x-1) , remember that m=n-1 and that x>1

Mtcheeeew. . . .Hey boyd, stop confusing yaself with extreme formulae. Examining the progression, one can infer that it's infinite and so would need to apply the sum of an infinite exponential sequence. So, you had better give it what it demands than making it finite with x^n......BTW, if you know your formula is the best, why didn't you use it to arrive at your final? Bunkum!

oyestephen: My people una well done o...a peep at this thread reveals young people with one mind, and i really appreciate this. Please help solve this maths question; find the sum of the following progression, 1+x+x^2+x^3..

Let's go. . . . . . . .

We're taking calculus cause ordinary Algebra can't handle it.
First of all, find the antiderivative of the series (1 + x + x^2 + x^3.....)which is obviously an exponential sequence:
x + x^2 + x^3 + x^4......

Using the sum of an infinite series:
S~ = a/1 - r
a = x
r = x
S~ = x/1 - x

Using Quotient rule (dy/dx = V du/dx + U dv/dx/V^2) we obtain:
dy/dx = 1 - x(1) + x(-1)/(1 - x)^2
1 - x - x/(1 - x)^2
1 - 2x/(1 - x)^2. . . . . . .answer

Gudmorning all, still purging sha...

rashywire: m back, u guys re really trying ooo. @ labodinho w@z wrong na, is it jacking tins, we've nt seen u serving lyk b4 nw. @ lurve, ortarico, mastermynd and others, we hav a lot 2 do oo, cos some pple wil just enter d thread saying rubish. Pls letz prepare 4 inevitable so d@ by d tym d list wil b out, nairalanders wil full it. M sorry 4 nt posting 2day, i promise 2 serve breakfast 2mao.

Agrhhhhh. . . . . . .too much delicacies here, i'm purging!

rashywire: pls i need d answer b4 3pm.
QUESTION
A MAN IS X YRS OLD WHILE HIS SON IS Y YRS OLD. D SUM OF THEIR AGES IS TWICE D PRODUCT OF THEIR AGE. IF D PRODUCT OF THEIR AGE IS 675, FIND D AGE OF D MAN

You guyz're right, there was a mistake in his question. Here it is jare:

A man is x years old, his son is y years old. The sum of their ages is twice the difference of their ages. If the product of their ages is 675, find the age of the man.

@rashywire, pls try to reveiw your questions before posting.

Calculusf(x):
...ade can do it in 3 hours...therefore for 1 hour...ade will do 1/3 of the job...and for 1 hour obi will do 1/5 of the job while audu will do 1/7 of the job for just one hour...combining the work all of them will do in one hour...therefore it's 1/3 + 1/5 + 1/7=71/105...therefore for one hour they will do 71/105 of the job...and for the whole job to be completed they will do 105/71 as this;
1hr~~>71/105 therefore,
xhr~~>1...
Cross multiply from there to get 71x/105=1...therefore x=105/71 hours

You're right boss. I think I've done it for him @unilag's admission thread.
So to continue from where you stopped:
x = 1.478873. . . . . . .which is 1hrs 28mins 44secs