Question

3. A car covers its journey at the speed of 80km/hr in 10hours. If the same distance is
to be covered in 4 hours, by how much the speed of car will have to increase?​

Answer 1

Answer:

120 km/hr

Step-by-step explanation:

Given,

A car covers its journey at the speed of 80km/hr in 10hours.

distance=Speed*time

Distance=80*10

If the same distance is  to be covered in 4 hours, by how much the speed of car will have to increase?​

let the speed increase be x in 4 hrs

distance=(80+x) km/hr*4 hrs

if distance is same then,

80*10=(80+x)*4

x=120km/hr