Percentage - Excercise 1 - Q7

Question

i. If the price of a book is first decreased by 25% and then increased by 20%, then the net change in the price will be :

  • 10
  • 20
  • 30
  • 40
4
Answer and Explanation
The Correct answer is : 10
Explanation :
Let the original price be Rs. 100.
New final price = Rs=. ${(\frac{120}{100}\times\frac{75}{100}\times100)}$= Rs. 90.
Decrease = 10%
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