Question

An average of 5 numbers is 40. If two of them are excluded then the average of remaining numbers becomes 45. Find out the excluded numbers.

• A. 30, 35
• B. 35, 36
• C. 36, 38
• D. 32, 32

Answer 1

Answer:

A. 30, 35

Total summation of numbers = 40 × 5 = 200 When 2 numbers are being excluded the average of remaining 3 numbers becomes 45. Total of remaining 3 numbers = 45 × 3 = 135 sum of excluded numbers = 200 - 135 = 65 Only option of numbers which add up to 65 is 30, 35.