In a box the ratio of nails to screws is 4:7 if there are 20 naols how many screws are there??
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35 screws are there in a box
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ratio = nails \screws = 4\7
4\7 = 20\x
then x = 20×7\4= 35 ans.
4\7 = 20\x
then x = 20×7\4= 35 ans.
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