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9.Findwhich ratio is greater 5:7 or 7:9.10. Two numbers are in the ratio 2: 3. If 5 be added to each, the ratio becomes 5:7, find the numbers |
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Answer» (9)5/7=0.7157/9=0.778so ratio is 7:9 is greater than 5:7(10) suppose two numbers are x and yso x:y=2:3so x=2y/3now if 5 is added to each ration will become 5:7so (x+5):(y+5)=5:77x+35=5y+255y-7(2y/3)=1015y-14y=30y=30 so x=2*30/3=20so numbers are 20 and 30 |
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