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?

Correct option is B

Given:

Distance per lap = 300 m

First lap time = 50 sec

Second lap time = 150 sec

Formula Used:

Average Speed = $$\frac{\text{Total Distance}}{\text{Total Time}}$$​​

Solution:

Total distance = 300 + 300 = 600 m

Total time = 50 + 150 = 200 sec

Average Speed = $$\frac{600}{200} = 3 \text{ m/sec}$$​​