3 brands of pens A,B and C are available in packets of 10,12 and 24.if a shopkeeper wants to buy equal number of pens of each brand , what is the minimum number of packets of each brand he should buy ?
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Just find the L.C.M of 10,12,24 which comes out to be 120. So the shopkeeper must buy 120 pens of each of the brands A,B & C.
Coming to the second part of the question about minimum number of packets then for
Brand A he should buy 120/10=12 packets
Brand B he should buy 120/12=10 packets
Brand C he should buy 120/24=5 packets.
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