Multiple choice Mean of five values is 21. If four values are 12, 29, 32 & 18, find the fifth value. 10 12 14 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.