Question

Four bells ring at intervals of 8,12,18,and 20 minutes respectively. At what time will they ring together if they start ringing at 9a. m.

Answer 1

Step-by-step explanation:

At first we have to take the LCM of the following given number.

LCM of the numbers=360

we know that there are in 60minutes =1hour

so 360 minutes = 360÷60 =6 hours

the time when the bell rings together =

9:00+6:00= 3 p. m

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