Question

The 8th term of an ap is 17 and its 14th term is 29. The common difference *

Answer 1

Let the first term be a and common difference be d.

∴ EIGHTH TERM = a + 7d = 17.......(i)

FOURTEENTH TERM = a + 13d = 29 ......(ii)

(ii) - (i) ⇒ a + 13d - a - 7d = 29 - 17

⇒ 6d = 12

⇒ d =2