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What should be the value of the bottom row?

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posted Oct 21, 2014 by Yogeshwar Thakur

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1 Answer

+1 vote

By Analyzing ROW 1 and ROW 3
we can write equations as
3x+y=45 (from ROW 1)

x+3y=55(from ROW 3)

we get x=10 and y=15

Now from ROW 2 we can write
x+y+2z=39
=> 10+15+2z=39
=> 2z=39-25
=> 2z=14
=>z=7

HENCE THE VALUE OF BOTTOM ROW IS
7+7+10+7=31(ANSWER)

answer Oct 30, 2014 by Amit Kumar Pal



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