Question

28. The price of a certain item is increased by 15%. If a consumer wants to keep his expenditure on the item the same as before, then how much per cent must he reduce his consumption of that item?​

Answer 1

Given,

Increase=15%

Let ,

Price =x

If ,

Old Price=100 , New Price =115

So,

New Price=115 , Old Price=100

Therefore ,

When New Price=x , Old Price=100x/115= 20x/23

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