Question

At 11:00 AM a bus left San Jose travelling to Los Angeles at 48 mph. Four hours later a motorcyclist started moving in the same direction from the same place at 72 mph. At what time the motorcycle will catch up to the bus?

Answer 1

The answer is 11pm.

here the bus and the motorcycle both will cover same distance. So if I think that the motorcycle will catch the bus after running x hours then the equation will be

(x.72)=48(x+4) because the motorcycle start moving after 4 hours.

from the equation the value of x is 8.

so the motorcycle will catch the bus at (11+4+8)=11pm.

Here's the answer.