Question

Which term of the A.P.will be 84 more than its 13th term?

Answer 1

25th term will be 84 more than the 13th term of this AP.

Step-by-step explanation:

The complete question is: Which term of AP 3,10,17...., will be 84 more than its 13th term?

a = 3

d = 7

ax - a13 = 84

 a + (x-1)7 - a - 12(7) = 84

 (x-1)7 -84 = 84

 x-1 = 168/7

 x = 24 + 1

 x = 25

So 25th term will be 84 more than the 13th term of this AP.