Question

an alarm flashes every 8 seconds and another alarm flashes every 12 seconds. If both alarms flash together, how many seconds will it be before they both flash together again?​

Answer 1

Answer: Akram flashes= 8 second

Another alarm flashes= 12 second.

429981696 is your answer.

Step-by-step explanation: So one alarm flashes 8 and another alarm flashes 12 , so the solution is 12*12*12*12*12*12*12*12= 429981696

Answer 2

$\huge\sf\pink{Answer}$

☞ Your Answer is 24 seconds

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$\huge\sf\blue{Given}$

➢ An alarm flashes every 8 sec

➢ Another alarm falsh every 12 sec

➢ They flash together now

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$\huge\sf\gray{To \:Find}$

✭ Time when they will flash together again?

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$\huge\sf\purple{Steps}$

So here we want to find the LCM of 8 and 12

➝ 8 = 2×2×2 = 2³

➝ 12 = 2×2×3 = 2²×3

LCM(8,12) = 2³×3 = 24

So they will flash again after 24 sec

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