Question

You and your friend are 10 miles apart. You ride your bike directly toward your friend at 12 mph. Your Friend walks directly toward you at 3 miles per hour. How long will it take for you to meet your friend?

Answer 1

Resultant speed = 12 + 3 = 15 mph

Time = distance/ speed
= 10 / 15 x 60 = 40 minutes