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On Benz Circle three consecutive traffic lights change after 35,42,70 seconds respectively.If the lights are switched on at 2:00 P.M. sharp at what time will they change simultaneously?02:03:35 P.M02:03:42 P.M02:03:58 P.M02:03:30 P.M02:03:40 P.M

Question

On Benz Circle three consecutive traffic lights change after 35,42,70 seconds respectively.If the lights are switched on at 2:00 P.M. sharp at what time will they change simultaneously?02:03:35 P.M02:03:42 P.M02:03:58 P.M02:03:30 P.M02:03:40 P.M

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Solution

To find out when the three traffic lights will change simultaneously, we need to find the least common multiple (LCM) of the three time intervals (35, 42, and 70 seconds).

The LCM of 35, 42, and 70 is 420 seconds.

420 seconds is equal to 7 minutes.

So, if the lights are switched on at 2:00 P.M. sharp, they will change simultaneously at 2:07 P.M. However, none of the options provided match this answer.

This problem has been solved

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