A and B can finish a work in 16 days while A alone can do the same work in 32 days. In how many days B alone will complete the work? Options:
A) 76 days
B) 48 days
C) 98 days
D) 32 days
E) 22 days

Rationale: b = 1 / 16 – 1 / 32 = 1 / 32 = > 32 days answer : d
Answer: D