Question

The traffic lights at three different road crossings changes after every 50sec,75sec,and100sec respectively.If they starts changing simultaneously at 8am after how much time will they change again simultaneously?​

Answer 1

Answer:

Step-by-step explanation:

lcm of 75 50 and 100=300

so they will change simultaneously again after 5 minutes or 300 seconds

Answer 2

Answer:

solved

Step-by-step explanation:

25x2²x3 = 300 sec = 5 min

they will change again simultaneously , after each 5 minutes ( 8:05 am)