There are n A.M.'s between 1 and 51 an...

There are n A.M.'s between 1 and 51 and fourth mean : seventh mean = 3 : 5, Determine n.

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KALYANI PUBLICATION-PROGRESSION-EXERCISE

If (a^(n+1)+b^(n+1))/(a^n+b^n) is the A.M. of a and b, then find n.
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There are n A.M.'s between 5 and 35. If second mean : last mean = 1 ...
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There are n A.M.'s between 1 and 51 and fourth mean : seventh mean =...
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There are p A.M.'s between 5 and 41 and third mean : (p-1)th mean = 2 ...
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