Question

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces.

4 / 9, 9 / 20, , 39 / 86

• A. 17/40
• B. 19/42
• C. 20/45
• D. 29/53

Answer 1

Answer: (B)

19/42

The sequence in the numerators is + 5, + 10, + 20,.... and that in the denominators is + 11, + 22, + 44,...
So, the numerator of the missing fraction should be (9 + 10) i.e. 19 and the denominator should be (20 + 22) i.e. 42.