Multiple choice

Mean of five values is 21. If four values are 12, 29, 32 & 18, find the fifth value.

  1. 10

  2. 12

  3. 14

  4. 16

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If the mean of 5 values is 21, then total sum = 21 × 5 = 105. Sum of four given values = 12 + 29 + 32 + 18 = 91. Fifth value = 105 - 91 = 14.