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Question

If the cost of 60 chocolates is ₹300, then what is the cost of 15 chocolates?

A
₹100
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B
₹50
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C
₹150
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D
₹75
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Solution

The correct option is D ₹75
Given:
Cost of 60 chocolates =300
Cost of 15 chocolates = ?

Half of 60 chocolates is 30 chocolates and half of 30 chocolates is 15 chocolates.
Half of half which is quarter (14) of 60 chocolates is 15 chocolates.

So, cost of 15 chocolates is nothing but quarter (14) of cost of 60 chocolates.

Half of ₹300 is ₹150.
Half of ₹150 is ₹75.

Half of half which is quarter of cost of 60 chocolates is 75

Cost of 15 chocolates is ₹75.

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