Question

At two different wad crossing
the traffic lights Jange every
60 seconds and 120 seconds,
sospectively. If they change
together at 8:30 am
when will they change
the same time once again


give answer fast

​

Answer 1

Step-by-step explanation:

Take L.C.M of 120 and 60

is 120

which means it change together after 120 mins is equals to 2 hour

so nxt timing will be 10 :30