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? Choose the correct choice from the following answers:
A) 39
B) 42
C) 58
D) 62
E) 75
Let the average after 7th inning = x   Then average after 16th inning = x - 3   therefore 16(x-3)+87 = 17x   therefore x = 87 - 48= 
<gadget id="calculator">87 - 48</gadget>
<output>39</output>
39   39nswer 39
<result>A</result>
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?