Question

The traffic lights at three different road crossings change after every 48 seconds, 72 seconds respectively. If they change simultaneously at 7 a.m., at what time will they change simultaneously again? ​

Answer 1

Answer:

I think it will change after 48 sec at 7 am.

Step-by-step explanation:

Because on morning time it will be less traffic.

Answer 2

The traffic lights at three different road crossings change after every 48 seconds, 72 seconds respectively. If they change simultaneously at 7 a.m., at what time will they change simultaneously again?

Answer: 48 sec