1.

The 8th term of an AP is 17 and its 14th term is 29. The common difference of the AP is (a) 3 (b) 2 (c) 5 (d) -2

Answer»

The correct option is (b) 2.

Explanation:

T8 = a + 7d = 17 ...(i) 

T14 = a + 13d = 29 ...(ii) 

On subtracting (i) from (ii), we get: 

⇒ 6d = 12 

⇒ d = 12/6

⇒ d = 2

Hence, the common difference is 2.



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