Question

2 bells toll after every 90 minutes and 105 minutes. if they toll together at 9:15 am, then find the no. of times at which they can toll together between 9:00 am and 11:00 pm on the same day

please answer fastly

Answer 1

Answer: they will toll together again after 10 hours 30 minutes in 7:45 pm

Step-by-step explanation:

LCM of 90 , 105 = 630

630 mins = 10 hours 30 minutes

9 : 15 am + 10 : 30

= 7:45 pm