A batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning. Select the correct option
A) 39	B) 88	C) 26	D) 87	E) 11

Rationale: "explanation : consider the avg for first 16 innings is x . then total runs scored till 16 innings is 16 x . total runs after 17 innings = 16 x + 87 . thus , 16 x + 8717 = x + 316 x + 8717 = x + 3 ⇒ x = 36 so his average after 17 innings = 39 . answer : a"
Answer: A