###
**The average of 11 results is 60. If the average of first six results is 58 and that of last six is 63, find the 6th result-
**

A. 66
B. 55
C. 64
D. 68
**Answer: Option A**

## Show Answer

Solution(By Apex Team)

The average of 11 results = 60
The total of 11 results,
= 60 × 11 = 660
Average of first six results = 58
Average of last six results = 63
Total of first six results,
= 58 × 6 = 348
Total of last six results,
= 63 × 6 = 378
∴ Sixth result = Total of first and last sixth results
= Total of 11 results
= (348 + 378) – 660
= 726 – 660
= 66

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