Multiple choice

A number is first increased by 20% and then it is reduced by 10%. So what is the percentage change in number?

  1. Decrease of 8%

  2. Decrease of 10%

  3. Increase of 10%

  4. Increase of 8%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the original number be 100. After a 20% increase: 100 + 20 = 120. After a 10% decrease on this new amount: 120 - (10% of 120) = 120 - 12 = 108. The net change from 100 to 108 is an 8% increase.

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