P and Q run around a circular track of 240 m at 15 m/min and 20 m/min speeds respectively. If they start running simultaneously, after what time will they meet again at the starting point?
Their relative speed is =Â $$\left(20-15\right)\ \frac{m}{\min}=5\ \frac{m}{\min}.$$
So, They will meet at starting point after $$\frac{240}{5}\ \min=48\ \min.$$
D is correct choice.
Create a FREE account and get:
Quick, Easy and Effective Revision
By proceeding you agree to create your account
Free CAT Formulae PDF will be sent to your email address soon !!!
