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Question

Ravi bought 40 chocolates for ₹20 each. If the cost per chocolate was ₹5 more, then how many chocolates could Ravi buy for the same amount?


A
35 chocolates
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B
36 chocolates
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C
32 chocolates
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D
30 chocolates
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Solution

The correct option is C 32 chocolates
Given,
Ravi bought 40 chocolates for ₹20 each.

We know that if the cost per chocolate increases, then the number of chocolates bought for the same amount will be less.

So, Cost(x)1Number of chocolates(y)
 x1 × y1 = x2 × y2

Given,
x1 = 20
y1 = 40 chocolates
x2 = 20+5 = 25
and y2 = Number of chocolates
 y2 = x1 × y1x2
 y2 = 20 × 4025 = 32 chocolates 

Hence, Ravi could buy only 32 chocolates.

Mathematics

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