Question

There are four bells, which toll at intervals of 3. 7. 12 and 14 seconds
respectively. The four bells begin to toll at 12 o'clock. When will they
next toll together and how often will they do so in 14 minutes?​

Answer 1

Step-by-step explanation:

lcm (3,7,12,14) =84

84 sec = 1 min 24 sec

the next toll together is 12:01 24 sec

14 min =840 sec

$840 \div 84 = 10$

so they do so 10 times in 14 min