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  1. If 1 is added to the denominator of a fraction it becomes 1/2. If 1 is added to the numerator it becomes 1. The product of numerator and denominator of the fraction is
    1. 6
    2. 10
    3. 12
    4. 14
Correct Option: A

Let the numerator = p and denominator = q

∴  Fraction =
p
 and =
p
=
1
qq + 12

⇒  2p = q + 1 ⇒  p =
q + 1
2

p + 1
= 1  ⇒  p + 1 = q
q

⇒ 
q + 1
+ 1 = q
2

⇒ 
q + 1 + 2
= q
2

⇒  q + 3 = 2q ⇒q = 3
p + 1 = 3 ⇒ p = 2
∴ pq = 2 × 3 = 6



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