Question

Three bells toll together at intervals 9,12,15 minutes. If they start rolling together after what time will they toll together?
a)2 hr 30 min
b)3 hr 30 min
c)3hrs
d)2hrs
Need Ans with explanation​

Answer 1

Answer:

3hrs

Step-by-step explanation:

9-12-15

=3hrs

gap of 3hrs

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