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Five terms are in AP their sum is 15 the ratio of product of their extremes to the product of second and fourth terms is 55:7 find the AP
Asked by rakshithkumar94494 | 10 Mar, 2019, 06:17: AM
Let the 5 terms in A.P. are   (a-2d), (a-d), a, (a+d), (a+2d)

sum of all the terms = 5a = 30  , hence  a = 6

given : ................................(1)
Substituting a = 6 in eqn.(1), we get ......................(2)

solving eqn.(2), we get d = 8

Hence A.P. is :  -10, -2, 6, 14, 22
Answered by Thiyagarajan K | 10 Mar, 2019, 08:12: AM

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