Question

A car takes 2 hours to reach a destination by travelling at the speed of 60 km/h. How long will it take when the car travels at the speed of 80 km/h?

Answer 1

let distance travelled be `k`
let speed of travelling be `s`
let time taken for 80km/hr be`x`
so, `t=k/s`
`k = t*s`
acc to question
`=> k =2*60= 80*x`
`x = 120/80`
`= 1.5 `hrs
answer