In a series of four cricket matches, the average number of runs scored by Jack and Jill is the same. The number of runs

[Vincen]

In a series of four cricket matches, the average number of runs scored by Jack and Jill is the same. The number of runs scored by Jill in the four matches are 45, 72, 18, and 25 respectively. If Jack’s median score is 30 and his highest score, in the series, is thrice his last score of the series, then what is the highest score of Jack in the series?

A. 25
B. 30
C. 60
D. 75
E. Cannot be determined

Answer: D

Source: e-GMAT