If n arithmetic means xare inserted between 1 and 31 such that the `7^(th)` mean`:` the `(n+1)^(th)` mean= `5:9` then prove that n=14

If n arithmetic means are inserted between 7 and 71 such that 5^(th) A.M. is 27 then n= ?

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

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

n arithmetic means are inserted between 3 and 17 such that ratio of first and the last means is 1: 3, find n.

If n arithemetic means are inserted between 20 and 80 such that the ratio of first mean to the last mean is 1:3, then find the value of n .

n A.M.'s are inserted between 1 and 31 such that the ratio of the 7 th and (n-1) th means is 5:9. Find n.

n A.M.\'s are inserted between 1 and 31 such that the ratio of the 7th and (n-1) th means is 5:9. Find n.

If n arithemetic means are inserted between 20 and 80 such tht the ratio of first mean to the last mean is 1:3, then find the value of n

If n arithmetic means are inserted between 20 and 80. Such that the ratio of first mean to the last mean is 1: 3 , then find the value of n.

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=