The maximum numbers of cards measuring 2cm by 4cm that can be cut from a piece of cardboard 12cm by 20cm is
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the number of cards can be cut =the area of cardboard/the area of card
the area of card =length*breadth
2*4=8cm
the area of cardboard = length *breadth
12*20=240cm
number of cards =240/8=30
the area of card =length*breadth
2*4=8cm
the area of cardboard = length *breadth
12*20=240cm
number of cards =240/8=30
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