Question

An electronic device makes a beer after 15 minutes. Another device makes a beep after every 20 minutes . They beeped together at 6 a.m.At what time will they next beep together.

Answer 1

Answer:

7 a.m.

Step-by-step explanation:

LCM of 15 and 20 is 60

so they will beep after 60 minutes

Answer 2

Answer:

please mark my answer as brainliest