Question

Jhanvi buy?
9.
Two neon lights are turned on at the same time. One blinks every 4 seconds and
the other blinks every 6 seconds. In 60 seconds, how many times will they blink
together at the same time?​

Answer 1

Answer:

1 ) LCM of 4 and 6 whichever is 12

So they will blink at same time in 12 seconds

60 ÷ 12 = 5

Therefore, they will blink together 5 times in 60 seconds.