If 1 is added to the denominator of a traction, the fraction becomes 1/2. If 1 is added to the numerator of the fraction, the fraction becomes 1. The fraction is :

A 1/3

B 2/3

C 4/3

D 5/3

Correct Answer: Option B

Let the fraction be x/y. Then, x /(y+1) = 1/2

=> 2x - y = 1 ..........(i)and

(x + 1) / y = 1 => x - y = 1 .......(ii)

Solving (i) and (ii), we get : x = 2, y = 3. Hence, the required fraction is 2/3..