x + 3 = ( (16 * x ) + 87 ) / 17

Solving above x = 36

The average after 17th innings is x + 3 = 39

Let X be the average after 16th innings Then we can write the following equation: (X x 16 + 87) / 17 = X + 3 ; X = 36 Then the average after the 17th winning is 36 + 3 = 39

Raina makes a score of 110 runs in 22nd inning of his career and thus increases his average by 4. Find his average after 22nd inning.

Ajit has played 50 Test innings and his average is 50. How many runs should Ajit score in his 51st test inning, so that his average moves up to 51? Note: He got dismissed every time.

The average of runs scored by Afridi of 10 innings was 32. How many runs must he make in his next innings so as to increase of runs by 4?

A batsman in his 18th innings makes a score of 150 runs and there by increasing his Average by 6. What will be the average after 18th innings?

In a cricket match the average number of runs per over in the first 20 overs was three.

After a further 30 overs the average number of runs rose to seven.

What was the average number of runs in the last 30 overs only?