Question

The first term of an AP is p and its common difference is q. What is its 10th term?
(a) p + 10q
(b) q + 10p
(c) p + 9q
(d) q + 9p

Answer 1

(c) p + 9q

Here, a = p and d = q
Now, T_n = a + (n - 1)d
⇒ T_n = p + (n - 1)q
⇒ ​​T₁₀ = p + 9q