Question

a car covers a certain distance in 40 minutes if it runs at 54km/hr.How much time will take to cover the same distance at a speed of 45km/hr?

Answer 1

Answer:

0.8 hours

Step-by-step explanation:

Time taken by cover to cover certain distance = 40 minutes

60 minutes = 1 hour.

So, 1 minute = 1/60 hour

So, 40 minutes=$\frac{40}{60} hour$

Speed = 54 km/hr.

Distance = Speed * Time

Distance = $\frac{40}{60} \times 54$

Distance =36 km.

Now if he travel the same distance at speed of 45 km/hr,

So, time taken = $\frac{Distance}{Speed}$

                        = $\frac{36}{45}$

                        = [tex]0.8/tex]

Hence it will take 0.8 hours to cover the same distance at a speed of 45 km/hr.