Question

Four bells begin to toll together and toll respectively at intervals of 5,6,8 and 12 secs. How many times will they toll together in an hour excluding the one at the start? Do you know this math question??​

Answer 1

Answer:

30 times

Step-by-step explanation:

L.C.M of 5,6,8,12 = 120

i.e. 120 seconds

so, they will toll together in 120sec = 2min

Therefore, in 1 hr = 60 min they will toll together =

60 min/2 min = 30 times

(excluding the starting one)