In a race, an athlete covers a distance of 300 m in 50 sec in the first lap. He covers the second lap of the same length in 150 sec. What is the average speed (in m/sec) of the athlete?
A12
B3
C11
D8
A12
B3
C11
D8
Related Questions:
Amita travels from her house at km/h and reaches her school 6 minutes late. The next day she travels at km/h and reaches her school 10 minutes early. What is the distance between her house and the school?