Three sprinters running on a circular track completes a lap in 4 minutes,5 minutes and 7 minutes. Find the time after which they will meet for the 1st time at the starting point when all the three sprinters start running simultaneously.

Two boys ‘A’ and ‘B’ are running on a circular track. ‘A’ takes 1 minute to finish one round while ‘B’ takes 50 seconds to complete one round. If they start simultaneously at 10.00 am, then which of the following is the time at which they can meet at the starting point?10.11 am10.15 am10.22 am10.33 am

A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point ?*4 points42 minutes and 36 seconds26 minutes and 18 seconds46 minutes and 12 seconds45 minutes

DIRECTIONS for questions 9 and 10: Type in your answer in the input box provided below the question. Two persons, A and B, simultaneously started running, from the same point, around a circular track, in the same direction, and met each other for the first time after 15 min from the start, during which time B had completed exactly five laps. Instead, if they had run in opposite directions, after how many minutes from the start would their 11th meeting have taken place, given that the speed of A is more than the speed of B?

Two cars on a circular track traveling at the rate of 10 and 15 laps per minute. If both the cars starts at a same time, after how long the cars cross at the strating point?

X, Y, Z start at the same time in the same direction to run around a circular stadium. X completes a round in 63 seconds, Y in 105 seconds and Z in 210 seconds. If they start at the same time, then at what time will they meet again at the starting point?Options :A] 9 min 9 secondsB] 10 min 30 secondsC] 10 min 6 secondsD] 8 min 4 seconds