If w+x=-4, x+y=25 and y+w=15,then the average of w,x,y is :
Solution
Correct Answer: Option D
w+x=-4........(i)
x+y=25......(ii)
y+w=15.....(iii)
(i)+(ii)+(iii)
2w +2x+2y=36
বা, 2(w+x+y)=36
বা, w+x+y=18
সুতরাং গড় ,18/3=6
x+y=25......(ii)
y+w=15.....(iii)
(i)+(ii)+(iii)
2w +2x+2y=36
বা, 2(w+x+y)=36
বা, w+x+y=18
সুতরাং গড় ,18/3=6
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