Multiple choice

A number is increased by 15% and then decreased by 20%. Find the net increase or decrease percent.

  1. 7%

  2. 12%

  3. 10%

  4. 8%

  5. na
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the number be 100. Increase by 15% = 115. Decrease 115 by 20% = 115 - (0.2 * 115) = 115 - 23 = 92. Net change = 92 - 100 = -8, which is an 8% decrease.

AI explanation

Let the initial number be 100. After a 15 percent increase it becomes 115, and a subsequent 20 percent decrease reduces it by 23, resulting in 92. The net change is a decrease of 8 from the original 100, which is an 8 percent decrease.

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