Question

Four bells being to ring together and then at intervals of 6,7,8,9 seconds respectively.how many times will the four bells ring together in 2 hours

Answer 1

take the LCM of 6, 7, 8, 9.
LCM will be 504
(All bells will toll together once every 504 seconds)
2×60×60 minutes = 7200 Seconds
7200/504 = 14.28 times in 2 hours

Answer 2

Ans 504

Step-by-step explanation:

very tuff answer i cant explain right now