A is half good a work man as B and together they finish a job in 32 days. In how many days working alone B finish the job?  Options:
A) 98 days
B) 21 days
C) 48 days
D) 18 days
E) 19 days

Rationale: "wc = 1 : 2 2 x + x = 1 / 32 = > x = 1 / 96 2 x = 1 / 96 = > 48 days answer : c"
Answer: C