215
25
23
45
Correct answer is B
Let x represent the entire farmland
then, 25x + 13[x - 23x] + M = x
Where M represents the part of the farmland used for growing maize, continuing
25x + 13x [1 - 23x] + M = x
25x+13x [35] + M = x
25x + 1x5 + M = x
3x5+M=x
M = x - 25x
= x[1 - 35]
= x[25] = 2x5
Hence the part of the land used for growing maize is
25
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