₦airaland Forum

mastermynd: [color=#550000]
Gud mawning #team lag#
quickly brush ur teeth and have appetizer
Which of the following is not an enclave
country?
A. Gambia
B. Lesotho
C. Vatican City
D. San Marino
2.One of these is not a coastal state?
A. Lagos
B. Port Harcourt
C. Benin
D. warri.
3.The process where a computer provides
computing services to several users
concurrently online is called
A. Time-sharing system
B. Batch system
C. Real-time system
D. Network system
4.The player scored a hat-trick means he
scored
A. a goal
B. two goals
C. three goals
D. fourth goal
5.A person walking 5/6 of his usual rate is
40 minutes late. What is his usual time?
A. 3 hrs 20mins
B. 30 hrs 10 mins
C. 4 hrs
D. 2 hrs 40mins
show no 5 workings,as both carry half mark...
LEEEEGOOOOOOOOOOO

My Oga, abeg no vex na only the number 5 me dey interested in:

Let 'x' be the usual time. If the usual rate is 1 unit, then the unusual rate is 5/6. Balanced by the distance:
1*t = (5/6)(t+40)
t = 5t + 200 all over 6
cross multiply:
6t = 5t + 200
6t - 5t = 200
t = 200 mins or 3 hrs 20 mins. . . . . . . . . . .OR

If the ratio of the rates of unusual to usual is 5:6, then the ratio of unusual to usual is 6:5
t = 40
5t = ?
5(40) = 200 mins

:. His unusual time is:
6t = ?
6(40) = 240 mins which oga oladoya got. . . . .

Sorry for joining you late, busy tinz. @rahsywire how did you know I wasn't sleeping?

@farano:
I trust Nairalanders. Hmm...no b small thing o.

Hmmn. . . .blessed is the man who confides in nairalanders, for he shall inherit # and land....

rashywire: pls help luk @ dis:
Ade cn do a certain job in 3hrs, Obi cn do d same job in 5hrs, and Audu cn do d same job in 7hrs. hw lng would d job take d 3 of dem workin 2gether

LGT. . . . .
First of all, add the work rate of Ade, Obi and Audu in a day:
=> 1/3 + 1/5 + 1/7
=> 35 + 21 + 15 all over 105
=> 71/105. . . .their work rate

:. The job hours of the 3 of them in a day:
=> 1/71/105
=> 105/71
=> 1.4788732. . . . . . . That is 1hrs 28mins 44secs

@farano:
Really

Of course, don't you trust me?

Mr Calculus: A fisherman's day is rated as gud if e catches 9 fishes,fair if 7 fishes & bad if 5 fishes.He catches 53 fishes in a week & had all gud,fair & bad days in d week.How many gud,fair & bad did d fisherman had in a week?
(A)4 gud,1 fair & 2 bad days.
(B)3 gud,2 fair & 1 days.
(C)2 gud,3 fair & 3 days.
(D)4 gud,3 fair & 2 days.
[plz show ur workings 2 o]

My boss, the above isn't maths ooo. . . .na puzzle! Abi make I prove am? Ok. . . .LGT

You gave options, so from the options a fast thinker would say:
option A says 4 gud fishes + 1 fair fish + 2 bad fishes = 7 i.e 7days. Or 4(9) + 1(7) + 2(5) = 53 fishes....that's it

:. As for me, I'll say it can be permutated like this and arrive at the answer too: 3 gud + 3 fair + 1 bad = 7 i.e 7 days. Or 3(9) + 3(7) + 1(5) = 53 fishes....But the later isn't among the options, therefore one can go for option A...

Lurve: farano 5/6 beembholah 2/6 ortatico 6/6 dr asiko 3/6

I said it!
As for the maths questions here, na go come coz me dey go church. . . . . .Halleluyah!

@farano:
King Solomon. How many concubines do u hav?lolz

hmmn. . . .I get Solomon's qualities except that cucumber sori concubine tinz

mastermynd: hello great aspirants,
i hav followed dis thread for about a week or so,,,and i must confess,hav fallen in luv with d thread already..,,thumbs up to yemmy,farano,ortrarico,labodinho,lurve,calculux,busyguy,rashywire,donmayor,asiko, and everybody,,.
Am in for psychology,bt hav a low jambscore of 202,,,any advice

You're welcome on board sir. . . . .low jamb score won't hinder our testimony. If you pray, believe and work towards the precipitation of your name on the list you're very good to go. . . .don't panic bro, welcome!

@farano:
yeah, including buzy & themmy

ok ma

rashywire: i tink i wrote d wrong question, d 1st product suppose 2 b difference, 10 gan ni ooo, cos i've also tried 2 solve wit d product buh couldn't get it. i'm gateful, pls help luk @ d next question

Don't be confused, it is!

yemmytcm: if 1000cm cube makes 1 litre. 45 litres will be 45000cm cube.... If 2cm cube takes 1 sec,45000cm3 will take 22500 secs or 375 minutes

You're right bruv!

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

@boladearo, this was exactly the question I gave you on 2go some weeks ago.
LGT. . . . .

From the first sentence:
x + y = 2(x - y)
x + y = 2x - 2y
collect like terms:
x - 2x = -2y - y
-x = -3y
divide both sidez by (-):
x = 3y. . . . . . . . .(i)

From the second sentence:
xy = 675. . . . . . .(ii)

Using substitutn method, substitute x= 3y into eqn(ii):
3y(y) = 675
3y² = 675
divide both sidez by d coefficient of y:
y² = 225
y = 15. . . . . .that's the boy's age

:. Substitute y= 15 into eqn(i):
x = 3(15)
x = 45. . . . . . .the man's age

Check:
sum of ages equals their difference:
45 + 15 = 60
2(45 - 15) = 60

product of their ages:
45 * 15 = 675

@farano:
Memento pls,dat was an error

I scored 10 then...

Lurve: which of the following expressions is correct? 1(a)you cannot eat your cake and have it (b) you cannot have your cake and eat it. 2(a)you are in the soup (b)you are in soup. 3(a)rest assured (b)be rest assured. 4(a) to be on the safer side (b) to be at the safer side. 5(a) benefit of doubt (b) benefit of the doubt. 6(a) bite off more than you can chew (b)bite more than you can chew

Hmmn. . . .blessed is the servant who does it with wisdom, lolzz:
1. B
2. A
3. A
4. A
5. B
6. A

yemmytcm: ashamed ? Say wetin ?....there is no shame in learning,if I decide to teach what i knw too,many will be ashamed cos they might av nt one idea...thanks for reminder,1 is no prime number. Luv y'all

carry come now, so that we can also widen our knowledge horizon.

echibuzor: .
.
Not rivals per say, but neither is willing to concede the higher ground....
.
.
.

.
.
Man, now that I think about it, the textbook is the most most correct.... Thanks man..

You're right boss!

yemmytcm: ok,#sounds interesting, thanks

my oga u don't need to be ashamed. no-one, i repeat; no-one is perfect!

yemmytcm: ortarico,you my personal person,na you wan disgrace me for here....kai,well I aint ashamed to learn...the prime numbers are 1,2,3,5,7

Boss, 1 is not a prime number!

echibuzor: .
.
.
Thats the problem that Economists throw around to bamboozle the average scientist that tries to form Mathematician with them...

lolzz. . . . .Are you trying to say we have always been rivals?

emekakelvin: Soln: prime number from 1-10= 2,3,4,7(dat is 4 numbers)
multiple of 3= 3,6,9(dat is 3 numbers)
the key word here is INCLUSIVE,
pr(A nd B)= PR(A)+PR(B) -PR(A nd B)
=4/10+3/10-1/10
7/10-1/10= 6/10 which gives u 3/5
n.b= pr(a)= probability of prime number
pr(b)= probability of multiple of 3
pr(A nd B)= intersection of both


dis is the rubbish d textbook solve , pls learn from it sir..tanx

Yeah, that's it jare!

yemmytcm: prime nos btw 1-10 inclusive are 5... So we ate 5/10.....then multiples of 3 are,3,6,9 that makes the prob 3/10....the ans should be 5/10+3/10..that will give us 4/5...ANS 4/5

Could you please list all the prime numbers between 1 and 10?

@farano:
Beembolah 7/10, dr asiko & damosky 10/10. CORRECTION- 1B/D, 2D, 3C, 4A, 5B, 6A, 7B, 8B, 9A, 10C

Good mornin' to you! Hmmmn. . . . .no 4, momento abi memento?

@farano:
You saw a shirt for 97k. U didn't hav d cash, so u borrowed 50k from ur mom & 50k from ur dad = 100k. U bought d shirt & had 3 k change. U gave ur dad 1k & ur mom 1k & kept d other 1k for urself. Now u owe ur mum 49k & ur dad 49k = 98k + ur 1k = 99k. Where is d missing 1k? (Introduction later pls)

NB: There's no missing 1k!
The problem lies with the method you used to calculate. You loaned money from two different individuals. In this case, the amount you used to buy the shirt is odd, you then added the money you borrowed from them to get one bulky money. When returning, you get the bulky money together and divide, which you clearly didn't divide :. Let's divide the 97k by two:
: 97k/2 = 48.5k

Remember you've given each of them 1k before. So, that accounts to:
=> 2(48.5k + 1k)
=> 2(49.5k)
=> 99k
Finally, add the 1k you took to yourself:
=> 100k....

rashywire: We still try or havn't I said it welln I'm sure b4 d exam, pple on dis thread will hav jack all texts n pack. Success oooo. Letz keep it rolling, cos I knw if we dnt set back, nairalanders will dominate Admission list

True shaaa. . . . .I saw your posts on the gurus' thread, what course are you applying for boss?

@farano:
Yemmy 7, lurve 6, agani 8, hillnite 8, ortarico 9, rashwire 7, themmy 9, mosh 8, buzyb 9.

Praise the Lord!

@farano:
Indicate d correct spelling- 1. a)fullscap b)foolscap c)fulscap d)foolscap... 2. a)perserverance b)perservarance c)perserverence d)perseverance... 3. a)sorvinir b)survenier c)souvenir d)souvenire... 4. a)momento b)memento c)mormento d)mementor.... 5. a)mischievious b)mischievous c)mischievious d)mischiveous... 6. a)dormant b)domant c)durmint d)doomant... 7. a)bureacracy b)bureaucracy c)burreacracy d)beureccracy... 8. A)aestetic b)aesthetic c)easthethic d)eastetic., 9. a)accessory b)accesiory c)accesory d)assesssory... 10. a)abattor b)abbattor c)abattoir d)abatoir (most of us will pray 4 dis kind of question)

1. D- option B & D na d same spelling oo
2. D
3. C
4. B
5. B
6. A
7. B
8. B
9. A
10. C

Mr Calculus: log(x^2+7x-2)base2=log(x^2+3x-6)base2+log8base4..
log(x^2+7x-2)-log(x^2+3x-6)=3/2log2base2..log2base2=1,
log(x^2+7x-2)base2/log(x^2+3x-6)base2=3/2.
.logbase2 cancels each other
(x^2+7x-2)/(x^2+3x-6)=3/2..
.cros multiply
x^2+7x-2=3/2(x^2+3x-6)..
multiply both by 2
2(x^2+7x-2)=3(x^2+3x-6)
2x^2+14x-4=3x^2+9x-18...by colectin lyk tems u'l get
x^2-5x-14=0..quadraticaly x=7 or x=-2

Hmmmmn. . . . another method though it ignores the rule of log of the same base: log_bP - log_bQ= log_b(P/Q)

doubleDx: @Ortarico, I have added you on yahoo messenger... greetings bruv!

Thanks, I'm grateful sir. Greetings too!

doubleDx: Solution

Log(x² + 7x - 2)₂ = Log(x² + 3x - 6)₂ + Log8₄

Log(x² + 7x - 2)₂ = Log(x² + 3x - 6)₂ + Log2³_2²
Log(x² + 7x - 2)₂ - Log(x² + 3x - 6)₂ = 3/2Log2₂

Log2₂ = 1, also we have same bases on the LHS, so we apply the law of log here to yield=>

Log{(x² + 7x - 2)/(x² + 3x - 6)}₂ = 3/2 * (1)

Eliminating Log₂ yields =>

(x² + 7x - 2)/(x² + 3x - 6) = 2^(3/2)
(x² + 7x - 2)/(x² + 3x - 6) = √2³
(x² + 7x - 2)/(x² + 3x - 6) = 2√2
x² + 7x - 2 = 2√2 (x² + 3x - 6)
x² + 7x - 2 = 2√2 x² + 6x√2 - 12√2

Collecting like terms yields =>

x² - 2√2 x² + 7x - 6x√2 + 12√2 - 2 = 0
x²( 1 - 2√2) + x (7 - 6√2) + 12√2 - 2 = 0

Applying quadratic formula to the above =>

a = ( 1 - 2√2), b = (7 - 6√2) and c = 12√2 - 2
x = {-b±√(b² - 4ac)}/2a
x = {(6√2 - 7) ± √[(7 - 6√2)² - 4(1 - 2√2)(12√2 - 2)]}/2( 1 - 2√2)

√2 = 1.44 approx, substituting and evaluating yields =>

x = {(6(1.44) - 7) ± √[(7 - 6(1.44))² - 4(1 - 2(1.44))(12(1.44) - 2)]}/2( 1 - 2(1.44))
x = {1.64 ± √(2.69 + 114.91)}/(-3.76)
x = {1.64 ± √117.6}/(-3.76)
x = {1.64 ± 10.84/(-3.76)

Spliting =>

x = (1.64 + 10.84)/(-3.76) or (1.64 - 10.84)/(-3.76)
x = 12.48/(-3.76) or 9.2/3.76

Rounding the values of x to one decimal place yields=>

x = -3.3 approx or 2.4 approx

Phew! Same in my work sheet!!

oladoya: here comes the answer... (1) log9-log3+log9 since they are in diff base just represent it with letter so we have A-B-C so lets solve A... Log9base3=a, then let the base have a as its power then we have 9=3^a, 3^2=3^a equate the base we have a=2.... Then lets take B... Log3base27=b, 3=27^b, 3^1=3^3b equ base, we have b=1/3.... Now C..... Log9basert3=c, 9= 3^c/2 we have 3^2=3^c/3 equ base we have 2=c/2 cross mult. We c=4 then remenber A-B+C = 2-1/3+4=17/3.... 2nd question (logx)base2-(logx-1)base2=2... According to the rule take a log(x/(x-1))=2, x/(x-1)=2^2, x/(x-1)=4 cross multiply you have x=4x-4, x-4x=4, -3x=-4, x=4/3...... No3 solving it quadratically we have x>1/2 or x>-4

Boss, your head is very correct!

buzyguy: 1)I was often angry......oche since he differed......me
a.with/to
b.about/with
c.with/with
d.with/in
2)he is my elder brother so,i ........him on many issues,bordering on life xperience.
A.differ from
b.differ to
c.defer to
d.differ with
3)is it true that okoro..........
.when the gates were closed?
A. Had returned b. Would return c. Would have returned d. Should return
4)The secretary-General was shocked at the number of..........
A.child's soldiers
b.childish soldiers
c.children soldiers
d.child soldiers
5)The old man was rushf to hospital when his blood pressure dropped to a....
A.dangerously lowness
b.dangerous low
c.dangerously low
d.dangerous lowness
6)The team has benefited from the coach's.......of xperience.
A.minefield
b.wealth
c.world
d.reservoir
7)The politician......the family of the deceased
a.greeted
b.condoled
c.wept over
d.commiserated with
our soldiers are starting to zero..........the enemy.
A.at
b.unto
c.in on
d.on at
9)making a phone call instead of paying a visit represents a.........trend.
A.sudden new major social
b.new social sudden major
c.new sudden major social
d.sudden social new major
10)i called him........he answered me once;he called me a.......... but i told him that he was not...........
A.thrice/drunkard/alright
b.thrice/drinkard/all right
c.three times/drunk/all right
d.thrice/drunk/all right

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

Mr Calculus: Plz guys help out i need an ansa to dis AT(Amplitude test) quest.
One of Mr. Bajaj,his wife,their son and Mr. Bajaj's mother is an Engineer and another is a Doctor.If d Engineer is younger than d Doctor,then d engineer and d Doctor are not blood relative.if d Engineer is a female,den she and d Doctor are blood relatives.Can u tell who is d Doctor and d Engineer?

Don't get you ooo. Is it; one mr. Bajaj or one of mr. Bajaj's......?