In a race, A beats B by 20 m or 10 seconds. Find B's speed.
A
4 m/s
B
5 m/s
C
2 m/s
D
2.5 m/s
Correct Option - C Explaination
20 meters are covered by B in 10 seconds.
B's speed
= 20/10
= 2 m/s
