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Question
If 1 is added to the denominator of a fraction. The fraction becomes 1/2. If 1 is added to the numerator. The fraction becomes 1. The fraction is:
Options:
A .  4/7
B .  5/9
C .  2/3
D .  10/11
Answer: Option C


Required fraction be x/y
x/y+1 = 1/2 
=> 2x “ y = 1 and (x+1)/y = 1 
=> x “ y = -1
= 2x “ y = 1 & x “ y = -1, 
we get x = 2, y = 3. 
The fraction is 2/3.



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