Question

A truckcovers a distance of 640 km in 10 hr. A car covers the same distance in 8 hr . What is the ratio of the speed of the truck to that of the car ?
A. `3:4`
B. `1:2`
C. `5:6`
D. None of these

Answer 1

Correct Answer - D
Speed of the truck = `(640)/(10) = 64` km/hr
Speed of the car = `(640)/(8) = 80` km/hr
Ratio = `(64)/(80) = (4)/(5) = 4 : 5`