Word problems... distance?

Question

a cyclist going at a uniform speed of 12 kph leaves town A for town B. at the same time , a man walking at 4kph from town B for town A along the same straight road. if town A is 20 km from town B, how far from town B will the two meet?

how to solve?

Answer 1

They are moving towards each other at a speed of 12+4=16 kph.  So, it will take them 20km / 16kph = 1.25 hours to meet.  The man walking from town B will have traveled 1.25 hours * 4 kph = 5k from town B.  So, they meet 5k from town B.