MPSC PYQAptitude
Niraj covered the first 20 km distance, out of a total of 60 km, at a speed of 10 km/hr, the next 20 km distance at 12 km/hr and the remaining 20 km distance at 15 km/hr. What is the average speed of Niraj to cover the 60 km distance ?
A.12 km/hr
B.13 km/hr
C.14 km/hr
D.11 km/hr
Correct answer: A