Question

Three bulbs glow at an intervals of 12,18 and 24 after how many seconds will the three bulbs glow together ​

Answer 1

Answer:

after 6 seconds = at 30

Step-by-step explanation:

the gap between 12 and 18 =6

18 and 24 =6

so we add 6 to 24 = 30

Answer 2

Step-by-step explanation:

Intervals after which the bulb glows = 12,18 and 24 seconds.

Seconds after which the three bulbs will glow together = LCM of 12,18 and 24 = 72 seconds.

Therefore, 3 bulb will glow together after 72 seconds .

I hope it helps you........