Question

There are three bells which ring at intervals of 50 sec, 75 sec and 100 sec respectively. If they rang simultaneously at 6 am, at what time will they ring together

Answer 1

Answer:

6:05 am

Step-by-step explanation:

LCM of 50, 75 and 100 is 300

convert 300sec into minutes

$1second = \frac{1}{60} minutes \\ \\ 300seconds = \frac{300}{60} minutes \\ \\ = 5 \: minutes$

so the three bells will rang simultaneously after 5 minutes

therefore,

time = 6:05 am