add 20% of 40 and 25% of 60.
Choose the correct choice from the following options:
A) 9.5  B) 23  C) 25  D) 22  E) 15

Rationale: "20 % of 40 + 25 % of 60 40 * 20 / 100 + 60 * 25 / 100 8 + 15 = 23 answer b"
Answer: B