Question
Sun August 26, 2012 By: Ritwika Sharma
 

how can we know that we have to find H.C.F or L.C.M ?

Expert Reply
Sun August 26, 2012

If the problem asks for maximum  things, like  Find the maximum numbers of rooms required, greatest size of a measuring can, etc, then we need to find HCF.

If the problem asks for simultaneous occurrence of events then we need to find LCM.

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