Question

A and B are running around a circular track of length 120 meters with speeds 12 m/s and 6 m/s in the same direction. When will they meet for the first time?
a)25 b)30 c)10 d)20; A and B are running around a circular track of length 120 meters with speeds 12 m/s and 6 m/s in the same direction. When will they meet for the first time?; a)25 b)30 c)10 d)20

Answer 1

Answer: Option 'd' is correct.

Step-by-step explanation:

Distance between the track = 120 meters

Speed of A = 12 m/s

Speed of B = 6 m/s

Since they are running in the same direction.

So, Relative speed would be

$12-6=6\ m/s$

so, Time at which they meet for the first time is given by

$Time=\dfrac{Distance}{Speed}\\\\Time=\dfrac{120}{6}\\\\Time=20\ m/s$

Hence, Option 'd' is correct.