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The sum of the 5th and 9th term of the A...

The sum of the 5th and 9th term of the AP is 30 If its 25th term is 3 times its 8th term find the AP

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Let the A.P be =>`a,a+d,a+2d.........` where a is the first term and d is the common difference
given=>`2a+12d=30=>a+6d=15`....(1)
also`a+24d=3(a+7d)=>3d=2a`....(2)
using(2) in (1)......`a=3,d=2`
The A.P is `3,5,7,9,11,13,15,17..........`
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