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The average of 13 numbers is 65. The ave...

The average of 13 numbers is 65. The average of first three numbers is 63 and that of next numbers is 64.5. The `11^(th)` number is 2 more than the `12^(th)` number but less than the `13^(th)` by 2.5. What is the average of `11^(th)` and `12^(th)` number?

A

67.5

B

67

C

65.5

D

65

Text Solution

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The correct Answer is:
B
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