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The numerator of a fraction is 2 less than its denominator. If the numeratoris multiplied by 2 and the denominator is multiplied by 3, then the fracti
Question

The numerator of a fraction is 2 less than its denominator. If the numeratoris multiplied by 2 and the denominator is multiplied by 3, then the fractionbecomes 2/9. The fraction is,

A.

1/3 

B.

3/5

C.

5/7

D.

7/9

Correct option is A

Let the fraction be x/y, where the numerator x is 2 less than the denominator y.

So, we write the equation:
x = y - 2

According to the problem, when the numerator is multiplied by 2 and the denominator by 3, the fraction becomes 2/9.
2x3y=29\frac{2x}{3y} = \frac{2}{9}​​

  • Cross multiply:2x×9=2×3y2x \times 9 = 2 \times 3y

    18x=6y18x = 6y

    3x=y3x = y​​​​

  • Substituting x = y - 2 into 3x = y:3(y2)=y3(y - 2) = y

    3y6=y3y - 6 = y

    3yy=63y - y = 6

    2y=62y = 6

    y=3y = 3​​​​​​

    Finding x: x = y - 2 = 3 - 2 = 1

So, the fraction is 1/3, which matches option (A) 1/3.

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