The average of runs of a cricket player of 20 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4 ?
Options:
A) 96 B) 106 C) 122 D) 116 E) 122
Average = total runs / no.of innings = 32   So, total = Average x no.of innings = 32 * 20= 
<gadget id="calculator">32 * 20</gadget>
<output>640</output>
640   Now increase in avg= 4 runs. So, new avg = 32+4= 
<gadget id="calculator">32+4</gadget>
<output>36</output>
36 runs   Total runs= new avg x new no. of innings = 36 * 21= 
<gadget id="calculator">36 * 21</gadget>
<output>756</output>
756   Runs made in the 11th inning= 756-640= 
<gadget id="calculator">756-640</gadget>
<output>116</output>
116   ANSWER:116
<result>D</result>
The average of runs of a cricket player of 20 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4 ?