Question

First term of an ap 8s 4 and the common difference is 3 its 12th term is same as the 8th term of another ap having first term -5.Find common difference of second ap

Answer 1

Answer:

given that a (first term) = 4 and common difference (d) = 3.

A12 is same as A8. so A.T.Q:

taking A12 and A8 equal then A12 = A8.

A+11d=A+7d = 4+11*3 = -5+7d

= 37 = -5+7d

= d = 42/7 = 6

so common difference of second ap is 6.

I hope this answer will satisfy your doubts clearly.

thanks..

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