Price of a book decreases from 90 to 54. Find the percentage decrease in the price
of the book.
full calculation please anyone can help
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Price of a book decreases from 90 to = 54
Decrease = 90 - 54 = 36
Decrease % = decrease ÷ original price × 100
= 36 ÷ 90 × 100 = 40 % Ans.
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