plz ans ........

Asked by nikitakoolkarni | 27th Feb, 2010, 12:32: PM

Expert Answer:

the c.d of this A.P. is 12

so to have a term 120 more than the 15th term, we use

120=12 x 10.

 so 10 terms after the 15 th term, will be  the  term which is 120 more than the 15th term.

cross check :not part of the solution.

a=5

d=12

15th term=a+14d=5+168=173

15th term+120=173+120=293

25th term=a+24d=5+288=293

Answered by  | 27th Feb, 2010, 02:26: PM

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