₦airaland Forum

Welcome, Guest: Join Nairaland / LOGIN! / Trending / Recent / New
Stats: 2,209,487 members, 4,821,818 topics. Date: Monday, 18 March 2019 at 10:59 PM

What Is The Total Weights Of The Animals In This Picture? - Education (3) - Nairaland

Nairaland Forum / Nairaland / General / Education / What Is The Total Weights Of The Animals In This Picture? (32417 Views)

The 10 Most Dangerous Animals In The World. / Transparent Animals You Never Knew Were In Existence! / 5 Small But Deadliest Animals In The World (2) (3) (4)

(1) (2) (3) (4) (Reply) (Go Down)

Re: What Is The Total Weights Of The Animals In This Picture? by phemmyfour: 2:00pm On Feb 13, 2015
a+b=10........eq1
a+c=20.........eq2
b+c=24.........eq3

Combine eq2 and eq3
Therefore b-a=4.......eq4
Now, combine eq1 and eq4
Therefore 2b = 14
b=7
a=3
c=17

Combine weight 7+3+17=27kg.......lobatan!
Re: What Is The Total Weights Of The Animals In This Picture? by drey076(m): 2:02pm On Feb 13, 2015
husseinjnr:
Let A= Rabbit
B= Cat
C = dog

From Figure above, in simple analysis

A + B = 10kg -----------equation 1

A + C = 20kg -----------equation 2

B + C = 24 kg ---------- equation 3


From equation 2,
A= 20- C

From equation 3

B= 24- C

Substitute A and B into equation 1

20-C + 24-C =10

44-2C = 10

-2C= 10-44

-2C = -34

C= 34/2

C= 17

Substitute C into equation 2

A+ 17 = 20
A= 3

Substitute C into equation 3

B+17 = 24

B= 7

Therefore

A= 3, B= 7, C= 17

Total weight is 3+7+17 = 27

Rabbit= 3kg

Cat = 7kg

Dog = 17kg
good

1 Like

Re: What Is The Total Weights Of The Animals In This Picture? by Nobody: 2:02pm On Feb 13, 2015
Let
D = Weight of the dog,
C = Weight of the cat, and
R = Weight of the rabbit

Let X = their combined weight.

Required:

X = D + C + R

Solution:

We are given the following:

C + R = 10..............(1)

C + D = 24..............(2)

D + R = 20..............(3)

From (1) we have the following:

C = 10 - R..............(4)

Substituting (4) in (2) we have:

(10 - R) + D = 24

===>> D - R = 24 - 10
===>> D - R = 14...........(5)

Solving (3) and (5) simultaneously, we have the following:

D + R = 20.............(2)
D - R = 14.............(3)

Adding (2) and (3) we will have:

(D + D) + (R - R) = (20 +14)

====>> 2D = 34

Dividing through by 2 we have:

D = 17...............(6)

Substitute for D in (2) we have:

17 + R = 20 ===>> R = 20 - 17

Hence, R = 3........(7)

Substituting for R in (1) we have:

C + 3 = 10 ===>> C = 10 -3 = 7.........(cool

Given that the combined weight is thus:

X = D + C + R

We have from (6), (7) and (cool the following:

X = 17 + 7 + 3

===>> X = 27

Therefore their combined weight is 27 kg

1 Like

Re: What Is The Total Weights Of The Animals In This Picture? by Nobody: 2:07pm On Feb 13, 2015
Set theory grin
Re: What Is The Total Weights Of The Animals In This Picture? by Nobody: 2:08pm On Feb 13, 2015
Folksyharry:
what will the three animals weigh?

Straight forward without all this mathematics; use the 2nd picture and d 3rd picture to demystify d mystery. Simple

27kg

The dog is 17kg
Cat is 7kg
And d Rabbit is 3kg
Re: What Is The Total Weights Of The Animals In This Picture? by Youpele52: 2:20pm On Feb 13, 2015
This is how I did mine

Re: What Is The Total Weights Of The Animals In This Picture? by musicwriter(m): 2:22pm On Feb 13, 2015
What this maths question also show is Nairalanders can lie!. So, because
someone answered correctly, everybody now get the same answer?. No single
wrong answer?.
If a Nairalander tell you to COME you'd better RUN.
Re: What Is The Total Weights Of The Animals In This Picture? by nanizle(m): 2:27pm On Feb 13, 2015
No need for long calculations.

Simply add up the weights (10+20+24)

That's 54kg (made up of 2 cats, two dogs and two rabbits)

54/2 = 27kg (1cat, 1dog and 1 rabbit)

5 Likes

Re: What Is The Total Weights Of The Animals In This Picture? by teemy(m): 2:32pm On Feb 13, 2015
I did a simple figure 1,2,3 added together gives 54kg = combined weight of 2 rabbits + 2 cats + 2 dogs. Divided by 2 gives 27kg as answered by the algeraens.
Re: What Is The Total Weights Of The Animals In This Picture? by kilokeys(m): 2:34pm On Feb 13, 2015
dechandel:
When i tell you to apply logical reasoning in life.. I know what i am saying grin

Imagine when a law student beat an engineering graduate in a maths essay cool
if i catch u. u wanna start this engineering / law duel?
parralel turning, broaching and drilling vs u yelling my name as i land my gavel in ur supreme immaculate court
Re: What Is The Total Weights Of The Animals In This Picture? by palabest: 2:35pm On Feb 13, 2015
lifestyle1:
Lets assume rabbit, cat and dog’s weight are R,C and D correspondingly.

then we can say

Equation 1: R + C = 10

Equation 2: D + R = 20

Equation 3: C + D= 24

Then we need to find value of C + R + D

On adding Equation 1,2 and 3

2R + 2 C + 2D = 54 => R+C+D = 27

Na expo i use o grin


The most brilliant of all the solutions!!!!
Re: What Is The Total Weights Of The Animals In This Picture? by aycd44(m): 2:39pm On Feb 13, 2015
27kg
Re: What Is The Total Weights Of The Animals In This Picture? by Alexbond(m): 2:47pm On Feb 13, 2015
d total weight of d animals in d "picture" is equivalent to d weight of d picture. no calculations required :Pd total weight of d animals in d "picture" is equivalent to d weight of d picture. no calculations required
Re: What Is The Total Weights Of The Animals In This Picture? by Nobody: 2:53pm On Feb 13, 2015
bros e never reach to comot CV na
husseinjnr:
Let A= Rabbit
B= Cat
C = dog

From Figure above, in simple analysis

A + B = 10kg -----------equation 1

A + C = 20kg -----------equation 2

B + C = 24 kg ---------- equation 3


From equation 2,
A= 20- C

From equation 3

B= 24- C

Substitute A and B into equation 1

20-C + 24-C =10

44-2C = 10

-2C= 10-44

-2C = -34

C= 34/2

C= 17

Substitute C into equation 2

A+ 17 = 20
A= 3

Substitute C into equation 3

B+17 = 24

B= 7

Therefore

A= 3, B= 7, C= 17

Total weight is 3+7+17 = 27

Rabbit= 3kg

Cat = 7kg

Dog = 17kg

2 Likes

Re: What Is The Total Weights Of The Animals In This Picture? by Hysmady(m): 2:54pm On Feb 13, 2015
Misogynist2014:
That's how they fail exams.
Who? Ur fellows?
Re: What Is The Total Weights Of The Animals In This Picture? by Tonei: 2:59pm On Feb 13, 2015
Jesus is the answer grin grin grin grin
Re: What Is The Total Weights Of The Animals In This Picture? by Misogynist2014(m): 3:01pm On Feb 13, 2015
Hysmady:
Who? Ur fellows?
He asked for collective weight, not individual weight.
Re: What Is The Total Weights Of The Animals In This Picture? by Usman212s: 3:06pm On Feb 13, 2015
C + R=10kg
D + R= 20kg
D + C= 24kg
Adding equation 1,2&3
2C+2D+2R =10+20+24
C+D+R = 54/2
= 27kg
Re: What Is The Total Weights Of The Animals In This Picture? by Oiselenjakhian(m): 3:11pm On Feb 13, 2015
Hello I am a web developer. My personal website is http://trustondevcenary.com please visit my site and fill the contact form if you want a website.
Re: What Is The Total Weights Of The Animals In This Picture? by aniagoluaustin(m): 3:13pm On Feb 13, 2015
30
Re: What Is The Total Weights Of The Animals In This Picture? by MistadeRegal(m): 3:19pm On Feb 13, 2015
jacksparrow1207:


YOU DULL SMALL SHA tongue tongue

Im com bright after im dull finish
Re: What Is The Total Weights Of The Animals In This Picture? by Nobody: 3:32pm On Feb 13, 2015
MistadeRegal:


Im com bright after im dull finish

[size=18pt]THAT KIND CANDLE LIGHT BRIGHT [/size] grin cheesy
Re: What Is The Total Weights Of The Animals In This Picture? by Timileyin(m): 3:35pm On Feb 13, 2015
omo, i have been calculation all day its 27 i think joor
Re: What Is The Total Weights Of The Animals In This Picture? by follygabby: 3:39pm On Feb 13, 2015
since 99% of you said 27, so why do i stress myself to calculate it.? abeg d answer is 27
Re: What Is The Total Weights Of The Animals In This Picture? by Agbalanze(m): 3:39pm On Feb 13, 2015
Let cat be C
Let dog be D
Let Rabbit be R

C+R=10..... EQU1
D+R=20..... EQU2
D+C=24..... EQU3
D+C+R=?

C=10-R.... EQU4
D=20-R.... EQU5

SUBSTITUTE EQU4 AND EQU5 INTO EQU3
D+C=24
20-R+10-R=24
30-2R=24
-2R=24-30
-2R=-6
2R=6
R=6/2
R=3 (Rabbit)

SUBSTITUTE R INTO EQU1
C+3= 10
C=10-3=7
C=7 (Cat)

SUBSTITUTE R INTO EQU2
D+R=20
D+3=20
D=20-3
D=17 (Dog)

TOTAL= D+C+R= 17+7+3= 27kg
Re: What Is The Total Weights Of The Animals In This Picture? by femi4love(m): 3:47pm On Feb 13, 2015
27
Re: What Is The Total Weights Of The Animals In This Picture? by serege(m): 3:55pm On Feb 13, 2015
kilokeys:
lol.. i stumbled on this q last week.. in d dead of d night.
went tthrough stress solving it.. while my e-bae dechandel made a good guess using a shorter method.. i almost cried cry
oboy see kakulation.
menn u try o grin
Re: What Is The Total Weights Of The Animals In This Picture? by Nobody: 3:57pm On Feb 13, 2015
Yungwizzzy:
How are mine supposed to know when it's just a drawing?

bring the animals in real life and I'll weigh them simple!!
grin grin grin grin grin grin grin

1 Like

Re: What Is The Total Weights Of The Animals In This Picture? by Hawlahscho(m): 4:21pm On Feb 13, 2015
kilokeys:
lol.. i stumbled on this q last week.. in d dead of d night.
went tthrough stress solving it.. while my e-bae dechandel made a good guess using a shorter method.. i almost cried cry



Na ur handwriting be that
Re: What Is The Total Weights Of The Animals In This Picture? by jasonkid007: 4:35pm On Feb 13, 2015
make dem enter soup pot first.ehen i go come siddon weigh them wella
Re: What Is The Total Weights Of The Animals In This Picture? by Henrolla(m): 4:36pm On Feb 13, 2015
husseinjnr:
Let A= Rabbit
B= Cat
C = dog

From Figure above, in simple analysis

A + B = 10kg -----------equation 1

A + C = 20kg -----------equation 2

B + C = 24 kg ---------- equation 3


From equation 2,
A= 20- C

From equation 3

B= 24- C

Substitute A and B into equation 1

20-C + 24-C =10

44-2C = 10

-2C= 10-44

-2C = -34

C= 34/2

C= 17

Substitute C into equation 2

A+ 17 = 20
A= 3

Substitute C into equation 3

B+17 = 24

B= 7

Therefore

A= 3, B= 7, C= 17

Total weight is 3+7+17 = 27

Rabbit= 3kg

Cat = 7kg

Dog = 17kg
u sabi book o, thank God for people like u on NL
Re: What Is The Total Weights Of The Animals In This Picture? by BMZK: 4:38pm On Feb 13, 2015
Visual method

(1) (2) (3) (4) (Reply)

Meet Ewetola Michael, OAU's Best Graduating Student / The Origin Of The Word Oyibo / Respect First Class Students In Public Universities

(Go Up)

Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health
religion celebs tv-movies music-radio literature webmasters programming techmarket

Links: (0) (1) (2) (3) (4) (5) (6) (7) (8) (9)

Nairaland - Copyright © 2005 - 2019 Oluwaseun Osewa. All rights reserved. See How To Advertise. 102
Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or uploads on Nairaland.