If in a race of 110m, A covers the distance in 20 seconds and B in 25 seconds, then A beats B by:  Choose the correct option
A) 20 m  B) 16 m  C) 11 m  D) 22 m  E) 15 m

Rationale: "explanation : the difference in the timing of a and b is 5 seconds . hence , a beats b by 5 seconds . the distance covered by b in 5 seconds = ( 110 * 5 ) / 25 = 22 m hence , a beats b by 22 m . answer d"
Answer: D