At 5.45 p.m., Lixin, Khairul and Devi are at the starting point of 1-k

1.	At 5.45 p.m., Lixin, Khairul and Devi are at the starting point of 1-km circularpath. Lixin takes 18 minutes to walk one round, Khairul needs 360 seconds to run 1 round and Devi cycles 2 rounds in 4 minutes. Find the time when all three of them will next meet.
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At 5.45 p.m., Lixin, Khairul and Devi are at the starting point of 1-km circularpath. Lixin takes 18 minutes to walk one round, Khairul needs 360 seconds to run 1 round and Devi cycles 2 rounds in 4 minutes. Find the time when all three of them will next meet.

Answer»

Mark me brainliest