20 post card cost rupees 10 what will be the cost of 84 postcards how many postcard can we buy in rupees 100
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3
84 post card cost rs= 42
100 rs = 200 post card
100 rs = 200 post card
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5
Cost of20such postcards=₹10
Cost of 1 postcard,1postcard=0.5p
Cost of 84 such postcards=0.5p*84=₹42
Postcards we can buy for₹ 0.5=1
Postcards we can buy for ₹100=200
Cost of 1 postcard,1postcard=0.5p
Cost of 84 such postcards=0.5p*84=₹42
Postcards we can buy for₹ 0.5=1
Postcards we can buy for ₹100=200
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