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Mathematics 7 Online
OpenStudy (anonymous):

At a bus interchange, Bus Service A leaves every 12 minutes and Bus Service B leaves every 21 minutes and Bus Service C leaves every 28 minutes. One bus from each service leaves the interchange at 08 00. At what time will buses from all three services next leave the bus interchange at the same time. Help show working because i know the answer (09 24) but don't know how to show workings clearly :(

OpenStudy (anonymous):

hahaha... calculate LCM of 12,21,28... because... you can think yourself.. it's a common sense stuff ! :) enjoy

OpenStudy (anonymous):

LOL thanks :D

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