Two alarms ring simultaneously at 3am. The first alarm rings every 20 minutes while the second alarm rings every hour. What time will the two alarms ring at the same time for the third time.

Two alarms ring simultaneously at 3am. The first alarm rings every 20

1.	Two alarms ring simultaneously at 3am. The first alarm rings every 20 minutes while the second alarm rings every hour. What time will the two alarms ring at the same time for the third time.
Answer» FIRST alarm ring after every 20 min 2nd after 60 min LCM of 20,60 is= 120 min= 2hrs So Again at 5AM they ring TOGETHER.

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Two alarms ring simultaneously at 3am. The first alarm rings every 20 minutes while the second alarm rings every hour. What time will the two alarms ring at the same time for the third time.

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