Ratio between 2 numbers is 5 : 7 and their product is 560.what is the difference between 2 numbers?  Choose one:  A) 6  B) 7  C) 8  D) 9  E) 2
Explanation:   x/y = 5/7   x × y = 560 ⇒ x = 560/y   Substituting this value in first equation, we get 560/yy=57560/yy=57 ⇒560y2=57560y2=57 ⇒ y = 28   x = 20   So difference between the numbers could be   x – y = –8   y – x = 8   Answer: 8
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Ratio between 2 numbers is 5 : 7 and their product is 560.what is the difference between 2 numbers?