After 10PM, he traveled for 48 minutes more( Given that he must arrive back home at 10:48PM).
It was given that 3mintues per mile which means in 3 minutes he travels 1 mile
=> in 48 minutes he will travel 48/3 miles
=> He travels for 16 miles more.
But he was already 10 miles from home at 10PM. That means he has to cover 10 miles while coming back.
That means he can travel for 6 miles from that point(Where he was at 10PM).
So, he would travel half of that 6 miles.
=> That means he travelled 3 miles additionally from where he was at 10PM.
Bunuel
At 10:00 p.m., a cyclist is 10 miles from home on a straight road. From that time on, the cyclist continues riding farther from home at a constant speed of 3 minutes per mile, then turns around and rides back toward home at the same speed along the same road. If the cyclist must arrive back home at 10:48 p.m., how many additional miles can the cyclist travel away from home after 10:00 p.m. before turning around?
A. 2
B. 3
C. 6
D. 9
E. 12