Q.4. If the price of a book is first decreased by 25% and then increased by 20%. Find the net
change in the price of book?
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Answer:
Rs.5
Step-by-step explanation:
Let the price of the book be Rs.100
ATQ,
the new price of the book
= [100-{25% of 100}]+(20%of 100)
= [100-(100/4)]+(100/5)
= (100-25)+20
= 75+20
= 95
So,
the original price of the book - the new price of the book
=› Rs.100 - Rs.95 = Rs.5
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