Walking at 5/6th of its usual speed a cab is 6mnts late. Find its usual time to cover the journey?	Select the correct option:
A) 25 m  B) 30 m  C) 32 m  D) 50 m  E) 62 m

Rationale: "new speed = 5 / 6 th of usual speed new time = 6 / 5 th of usual time 6 / 5 ut - ut = 6 m ut / 5 = 6 m ut = 30 m answer is b"
Answer: B