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Who Can Answer This Tricky Question - Education - Nairaland

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Who Can Answer This Tricky Question by IecheM(m): 8:07pm On Aug 27, 2017
Hello nairalanders, have tried and tried but can't figure out the answer, over to the mathematicians in the house.

Re: Who Can Answer This Tricky Question by Tolexander: 8:14pm On Aug 27, 2017
Representing each box with a letter as shown in the pic below.
www.nairaland.com/attachments/5879646_screenshot20170827211643_jpeg97ce5ab72b9d776d45dc9155fd2c4857

First box = A
Second box = B
Third box = C
Fourth box = D

Step 1
A + B = 8 ........ eqn i
A + C = 13 .......eqn ii
B + D = 8 ........eqn iii
C - D = 6 ..........eqn iv

Step 2
A = 8 - B from eqn i
A + C = 13 in eqn ii
8 - B + C = 13
B - C = -5 ...... ...eqn v

D = 8 - B from eqn iii
C - D = 6 in eqn iv.
C - 8 + B = 6 combining the two above
C + B = 14 ...... ...eqn vi

Step 3
B - C = -5 .... ... eqn v
C + B = 14 .... ..eqn vi
B = C - 5 rearranging eqn v
C + C - 5 = 14
2C - 5 = 14
2C = 14 + 5 = 19
C = 91/2

C + B = 14 in eqn vi
B = 14 - 91/2
B = 41/2

A + B = 8 in eqn I
A = 8 - 41/2
A = 31/2

B + D = 8 in eqn iii
D = 8 - 41/2
D = 31/2


ANSWER
A = 31/2

B = 41/2

C = 91/2

D = 31/2


CHECK
A + B = 8
41/2 + 31/2 = 8

A + C = 13
41/2 + 91/2 = 13

B + D = 8
31/2 + 41/2 = 8

C - D = 6
91/2 - 31/2 = 6

1 Like

Re: Who Can Answer This Tricky Question by Zimri(m): 8:21pm On Aug 27, 2017
IecheM:
Hello nairalanders, have tried and tried but can't figure out the answer, over to the mathematicians in the house.

Keep trying. Winners never quit
Re: Who Can Answer This Tricky Question by olayinks007(m): 8:26pm On Aug 27, 2017
Eleyi gidi gan ooo. I don try all my mathematical tactics sha still yet no way.
Re: Who Can Answer This Tricky Question by prof800(m): 9:00pm On Aug 27, 2017
31/2 + 41/2 = 8
+ +
91/2 - 31/2 =6
Re: Who Can Answer This Tricky Question by omaolowo(m): 9:04pm On Aug 27, 2017
My answer is attached

Re: Who Can Answer This Tricky Question by Tolexander: 10:04pm On Aug 27, 2017
omaolowo:
My answer is attached
you tried.

Lalasticlala, Fynestboi, Dominique, Seun

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