Question

a car covers a distance of 200 kms in 2 h 40 mins where as a jeep covers the same distance in 2 h. what is the ratio of there speeds ?

Answer 1

Distance covered by car = 200km in 160 min
distance covered by jeep=200km in 120min
speed=distance/time

so 200/160 : 200/120 =5/4:5/3
or 
200/9600s:200/7200

Answer 2

Speed of car = 200/160
Speed of jeep = 200/120
Their ratio = 200/160 : 200/120
This can be written as 200/160 * 120/200
= 120/160
=3:4