Multiple choice

A salary is first increased by 15 % and then by 10 %. What is the overall percentage increase?

  1. 19

  2. 22

  3. 26.5

  4. 28

  5. 31
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Successive percentage increase = a + b + (ab/100) = 15 + 10 + (15*10/100) = 25 + 1.5 = 26.5%.

AI explanation

Using the successive percentage increase formula (a + b + (ab / 100)), substitute a = 15 and b = 10. The calculation is 15 + 10 + ((15 * 10) / 100), which equals 25 + 1.5. Therefore, the overall percentage increase in the salary is 26.5%.

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