The average runs of a cricket player of 10 innings was 20. How many runs must he make in his next innings so as to increase his average of runs by 4?	Choose the correct choice from the following options.
A) 22
B) 77
C) 64
D) 19
E) 17

Rationale: "explanation : average after 11 innings = 24 required number of runs = ( 24 * 11 ) – ( 20 * 10 ) = 264 – 200 = 64 answer : c"
Answer: C