Question

Three babies a b and C cry out at every interval of time baby a cries out at every 20 minutes while b cries out at every 30 minutes and c at every 40 minutes. If they are observed at the same time after what time will the
three of them cry together

Answer 1

Answer:

120 mins=2 hrs

Step-by-step explanation:

we have to find the lcm to answer this question

a=20

b=30

c=40

LCM of 20,30 and 40= 120

so the three babies will cry at the same time after 120 mins= 2 hrs

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