smc

Question

Jones covered a distance of 50 miles on his first trip. On a later trip he traveled 300 miles while going three times as fast. His new time compared with the old time was:

Accepted Answer

WLOG Jones travels at 50 miles per hour. Then, it took him 1 hour to travel 50 miles at 50 miles per hour. On his second trip, he travels 300 miles at 150 miles per hour, which takes twice as much time as before.