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प्रश्न
What quantity must be subtracted from each term of the ratio 9 : 17 to make it equal to 1 : 3?
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उत्तर
Let x be subtracted from each term of the ratio 9 : 17.
`(9 - x)/(17 - x) = 1/3`
27 – 3x = 17 – x
10 = 2x
x = 5
Thus, the required number which should be subtracted is 5.
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