Question

The distance between town A and town B is 123km. Two buses begin their journey from these two towns and move directly towards each other. The speed of one of them is 1 km/hr more than the other. Find the speeds of these two buses if they meet each other after 3 hours.​

Answer 1

Step-by-step explanation:

distance,s = 123km

time,t = 3hours

velocity,v = 123/3

= 41km/s

let x be the speed of one bus and x+1km/h be the speed on another bus, then

x+x+1 = 41

=> x + x = 41- 1

=> 2x = 40

=> x = 40/2

=> x = 20

speed of one bus = 20 km/h

speed of another bus = 21km/h