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If n arithmetic means are inserted betwe...

If `n` arithmetic means are inserted between 1 and 31 such that the ratio of the first mean and nth mean is 3:29 then the value of `n` is
a.`10` b. `12` c. `13` d. `14`

Text Solution

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he given series is` 1 ...... 31`
There are n A.M. between 1 and 31 : 1,
A1,A2,A3,……,An,3]
Common difference, d=31−1n+1=30n+1
Here, we have:
...
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