In a circular race on a track of length 2000 m, X and Y start from the same point at the same time in same direction at the speeds of 15 km/h and 33 km/h, respectively. After how much time will they meet next?

Correct option is A

Given:

Length of track =2000

Speed of A and B = 15km/hr and 33km/hr

Formula Used:

Time = $$\frac{Distance}{Speed}$$​​

Solution:

When running in same direction then relative speed = 33 -15 = 18km/hr

Speed in m/sec = $$18 \times \frac{5}{18} = 5 m/sec$$​​

Time = $$\frac{2000}{5}$$ = 400sec