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Nairaland Forum / Entertainment / Forum Games / Mathematicians Get In Here (2855 Views)
Brain Teaser: Where Are The Mathematicians?? (2) (3) (4)
Mathematicians Get In Here by draftmaster: 9:58am On Nov 09, 2017 |
Who can solve this correctly
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Re: Mathematicians Get In Here by Slayer2: 10:26am On Nov 09, 2017 |
Make I try 4+4= 8 4+9= 13 9-3= 6 |
Re: Mathematicians Get In Here by draftmaster: 10:56am On Nov 09, 2017 |
Wrong. Try again Slayer2: |
Re: Mathematicians Get In Here by mike234: 11:07am On Nov 09, 2017 |
If first row boxes are a and b respectively, and second row boxes x and y respectively. Then answer is A= 3.5 B= 4.5 X= 9.5 Y= 3.5 Qed 1 Like |
Re: Mathematicians Get In Here by terrezo2002(m): 9:16am On Nov 13, 2017 |
Solving simultaneously,
Let the Boxes be represented as W, X, Y and Z
W + X = 8 .....(1)
W + Y = 13.....(2)
X +Z = 8.........(3)
Y - Z = 6 .........(4)
From Equation 1, W= 8 - X.....(5)
Substitute the value of W in Equation 2
you have 8 - X + Y = 13.....(6)
From Equation 3, X = 8 - Z....(7)
Substitute the value of X in Equation 6
you have 8 - (8 - Z) + Y = 13
opening the bracket, you have
8 - 8 + Z + Y = 13
Which then gives Z + Y = 13....(
From Equation 4, Y = 6 + Z .....(9)
Substitute the value of Y in Equation 8
It becomes Z + 6 + Z = 13
Which turns into 2Z+ 6 = 13
2Z= 13-6
2Z= 7
Z= 7/2
Z= 3.5
Substitute the value of Z in Equation 9, You will get
Y= 6+3.5
Y= 9.5
Substitute the value of Y in Equation 2
W + 9.5 = 13
W = 13 -9.5
W = 3.5
substitute the value of W in Equation 1
3.5 + X = 8
X = 8- 3.5
X = 4.5
Therefore; W = 3.5, X= 4.5, Y= 9.5 and Z = 3.5. Thank you and God bless 2 Likes 1 Share |
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