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Question
What quantity must be added to each term of the ratio 19 : 51 to make it equal to 3 : 7 ?
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Solution
Let x be added from each term such that
`(19 + "x")/(51 + "x") = 3/7`
⇒ 133+ 7X = 153+3X
⇒ 4x = 20
⇒ x = 5
5 should be added to each term.
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