# Find his Average After 17th :

A batsman makes a score of 87 runs in the 17^{th} inning and thus increased his average by 3. Find his average after 17^{th}

- 90
- 84
- 39
- 87

**Answer: (3) 39**

**Explanation:-
**Let the average after 17th innings = X

Then, the average after 16th innings = (X – 3)

According to the question,

16 (X – 3) + 87 = 17 X

16 X – 48 + 87 = 17 X

16 X + 39 = 17 X

17 X – 16 X = 39

X = 39

Then, the average after 17th innings is 39.

Hence, the answer is (3) 39.