1.  The denominator of a fraction is 3 more than the numerator. If the numerator as well as the denominator is increased by 4, the fraction becomes 4/5. what was the original fraction ?
A. 8/11
B. 5/8
C. 10/13
D. 7/10

Answer: Option A

Explanation:

Let the numerator be x. Then, denominator = x + 3.

Now,  x + 4          = 4/5

       (x + 3) + 4

⇒  5(x + 4) = 4 (x + 7)

∴  The fraction is 8/11.