Question

Two men running towards each other at 4m/s and 6m/s respectively are one kilometre apart.How long will it take before they meet

Answer 1

Answer:

speed of 1st man = 4m/s

speed of 2nd man = 6m/s

therefore total speed = 10m/s

distance = 1km = 1000m

time = distance /time

= 1000m/ 10m/s

= 100s = 1minute and 40 second

therefore they meet after 1min and 40 second