Answered

Here are 3 alarms, alarm a beeps every 15 seconds, alarm b beeps every 40 seconds, alarm c beeps every 100 seconds, all the beeps start at the same time how long will it take for them to beep at the same time again



Answer :

Answer:

600 seconds

Step-by-step explanation:

Find lcm of 100 and 40, and you get 200. Then find the LCM of 15 and 200, and get 600 as your final answer.