A and B start walking towards each other at 5am at speed of 4kmph and 8kmph. They were initially 36km apart. At what time do they meet? Choose the correct choice from the following choices: A) 8 am B) 6 am C) 7 am D) 10 am E) 8 pm

Rationale: time of meeting = distance / relative speed = 36 / 8 + 4 = 36 / 12 = 3 hrs after 5 am = 8 am answer is a
Answer: A