SSC CGL 2016 Tier 1 4 Sept Question 15

If 25 + 5 % 2 = 40, and 35 + 5 % 2 = 60, then
45 + 5 % 2 = ?
A. 90
B. 70
C. 60
D. 80
Answer: 80
25 + 5 % 2 = 40 => (25 - 5) X 2 = 40
35 + 5 % 2 = 60 => (35 - 5) X 2 = 60, then
45 + 5 % 2 => (45 - 5) X 2 = 80