Question

The cost price of a book is first increased by 20% and again decreased by 20% if the beginning price of a book was rupees 75 then find the present price? ​

Answer 1

Answer:

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Step-by-step explanation:

begging price 75

increased by 20% = 75+15=90

then decreased by 20% = 90-18 = 72

present price is 72

Answer 2

Answer:

Let the price of the book be 100

The price of the book after first decreased by 25%=100*75/100=75

The price of the book after increase of 20%=75*120/100=90

Net change in price=90–100=-10 (decrease of 10)

Percentage of net change in price=-10/100*100=-10% (10% decrease in price)

Step-by-step explanation:

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