Question

Ali Tom and Rohan Jog daily around a rectangular park. They take 10 minutes, 15 minutes and 5 minutes respectively to take complete round. In one morning all of them start at same time from the same point and joging in the same direction for one hour.
a)* After how many minutes will all three of them meet again.
b)* which quality do these boy possess.

Answer 1

To answer this question, you will need to find the least common multiple of 10, 15 and 5 minutes. That is when all the three boys will meet again at the starting point.

So, the LCM of 10, 15 and 5 is 30. Thus, after 30 minutes, the boys will meet again.

As for the second question regarding quality, Tom jogs the slowest because he takes 15 minutes to complete a round while the Rohan jogs the fastest because he takes 5 minutes to complete a round. Another quality they possess is that of exercising every day early in the morning.