A and B start walking towards each other at 7am at speed of 12kmph and 13kmph. They were initially 25km apart. At what time do they meet?
Choose the correct choice from the following choices:
A) 8 pm
B) 6 am
C) 7 am
D) 10 am
E) 8 am

Rationale: "time of meeting = distance / relative speed = 25 / 13 + 12 = 25 / 25 = 1 hr after 7 pm = 8 am answer is e"
Answer: E