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There are m A.M.s' between 1 and 31 . If...

There are m A.M.s' between 1 and 31 . If the ratio of the `7^(th)` and `(m-1)^(th)` means is 5:9 then m=

A

12

B

13

C

14

D

15

Text Solution

Verified by Experts

The correct Answer is:
C
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