The speed of a boat in still water in 65 km/hr and the rate of current is 15 km/hr. The distance travelled downstream in 25 minutes is:  Choose the correct choice from the following choices.
A) 55.55 km
B) 44.44 km
C) 33.33 km
D) 22.22 km
E) 11.11 km

Rationale: "explanation : speed downstream = ( 65 + 15 ) = 80 kmph time = 25 minutes = 25 / 60 hour = 5 / 12 hour distance travelled = time × speed = ( 2 / 5 ) × 80 = 33.33 km answer : option c"
Answer: C