The average of 11 numbers is 68. If the average of the first five is 63 and…
2025
The average of 11 numbers is 68. If the average of the first five is 63 and the average of the last five is 72,
find the 6th number.
- A.
73
- B.
74
- C.
75
- D.
76
Attempted by 31 students.
Show answer & explanation
Correct answer: A
Total of 11 numbers = 11 x 68 = 748. First five total = 5 x 63 = 315 and last five total = 5 x 72 = 360. The sixth number is 748 - 315 - 360 = 73.