Question

Distance between two places a and b is 210 km two cars start simultaneously from a and b in opposite direction and distance between them after 3 hour is 54 kilometre if speed of an car is less than that of other by 8 kilometre per hour find the speed of each car​

Answer 1

Answer:The distance between a and b is 210

Two cars travelled simultaneously

After 3 hours they travelled=210-54=156

speed=d/t

let the speed of two cars is x

x+x-8=156/3

2x-8=52

2x=60

x=30

30,30-8

∴30,22

Answer 2

Answer:

Let the another car's speed be x km per hour out of the coverage of distance of 54km.

Then, x+(x-8)=54

2x-8=54

2x=62

x=31

Therefore, the speed of one car is=31-8=23km/hr

And another car=31km/hr.

hope it helps you!!