At a railway junction , trains started from 5 different platforms at 3,4,8,12,15 min interval. At 7: 30 AM train started from all 5 platforms. When will they start again together .
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Answered by
2
Answer:
at 9:30am thay will start again together
Answered by
1
Answer:
9:30 am
Step-by-step explanation:
first take the lowest common factor of 3,4,8,12,15 min.
the LCM is 120
60 minute is equal to 1 hour
120 min equal to 2 hour
train started from all 5 platforms = 7:30 am
Next time when they will start again together is 7: 30 am + 2 hour = 9:30 am
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