Question

can u plz solve question number 11​

Answer 1

Answer:

Given that the car covers 150 km in 2 hours.

We have formula to calculate speed which is given by

$speed = \dfrac{distance}{time}$

SO,

$speed = \frac{150}{2} \\ \\ speed = 75km/ hour$

Now,

we know that from the above formula

$time = \dfrac{distance}{speed}$

So,

time taken by the car to cover 315 km is

$time = \frac{315}{75} \\ \\ time = \frac{21}{5} hr \\ \\ time = 4.2hr$

So car will take 4.2 hour to travel 315 km .

Answer 2

Answer:

4.2 hours

Step-by-step explanation:

∴ Speed= distance/time

Distance = 150 km, time = 2 hours.

Speed = 150/2 = 75 km/hr

Now for 315 km distance

Time = distance/speed = 315/75 = 4.2 hours.

Hence, the time it takes is 4.2 hours.

#Hope my answer help you!