Question

a car is running at 20 m/sec. how much distance will it cover in 2 hrs 20 mins??​

Answer 1

Answer:

Step-by-step explanation:

First convert 20 metre per second into kilometre per hour.

And then solve

To convert multiply with 18/5

Answer 2

Answer:

To find : distance covered by car .

Given : speed =  20 m/sec.         Time = 2 hrs 20 mins

converting speed into km/ hr :

                        = $(20\times\frac{18}{5} )km/hr$

                        = 72 km /hr

converting 2hrs 20 mins into hours :

  $2\times\frac{20}{60}$   $= 2\times\frac{1}{3}$  $= \frac{7}{3} h$

∴ distance covered by car in 2 hrs 20 mins is

we know that , speed = distance /time

 therefore, distance = $72 km/hr\times\frac{7}{3} hr$  

∴          distance =   24 x 7

                          = 168 km            

Hence, car will cover distance of 168 km.