Q175
A man travels 50 km at speed 25 km/hr and next 40 km at 20 km/hr and there after travel 90 km at 15 km/hr. His average speed is :
A.
18 km/hr
AnswerB.
25 km/hr
C.
20 km/hr
D.
15 km/hr
Answer: Option A
Solution
Answer: Option A
Solution: