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The average of 11 results is 60. If the average of the first 6 results is 59 and that of the last six is 62. Find the sixth result?

A56

B42

C66

D74

Answer:

C. 66

Read Explanation:

Total of 11 results = 11 x 60 = 660 Total of first 6 results = 6 x 59 - 354 Total of last 6 results = 6 x 62 = 372 Sixth number = (354 + 372) = 660 = 726-660 = 66


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