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Question :
In May, John bought the same amount of rice and the same amount of wheat as he had bought in April, but spent 150 more due to price increase of rice and wheat by 20% and 12%, respectively. If John had spent 450 on rice in April, then how much did he spend on wheat in May?
Started 2 weeks ago by Shashank in
Option C
is the correct answer.
Explanatory Answer
In April, John bought ‘r’ amount of rice at ‘x’ price, and ‘w’ amount of wheat at ‘y’ price.
Money spent = r * x + w * y
Also, r*x = 450
In May, amount spent = r( 1.2x) + w(1.12y)
= 1.2r*x + 1.12w*y = (r*x + w*y) + 150
0.2r*x + 0.12w*y = 150
0.12w*y = 150 – 0.2*450 = 60
w*y = 60/0.12 = 500
Amount spent on wheat in May = 1.12*500 = 560
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