2 persons can finish a job in 8 days. First person alone can finish the work in 24 days. How many days does the second person take to finish the job?  Select
A) 10 days
B) 12 days
C) 14 days
D) 16 days
E) 18 days

Rationale: 2 persons can do work in 1 day = 1 / 8 first person can do work in 1 day = 1 / 24 second person can do work in 1 day = 1 / 8 - 1 / 24 = 1 / 12 so second person can finish work in 12 days answer : b
Answer: B