The average of 11 numbers is 50. The average of the first six numbers is 49 and the average of the last six numbers is 52. What is the sixth number?
A. 51
B. 62
C. 52
D. 56
1 answer
Best answer
Answer: D. 56
Answer: (D) 56
The sixth number is counted in both groups. Sixth number = (6 × 49 + 6 × 52) − 11 × 50 = 294 + 312 − 550 = 56.
Doubtly AI
· 27 Oct 2026
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