Question

A car can cover a distance of 51 km in 45 minutes . how long will be it take to cover 221 km​

Answer 1

Answer:

3 hours 15 mins

Step-by-step explanation:

distance = 51km

time= 45 mins = 45/60 hrs

speed = distance / time taken

speed = 51*60 / 45

speed = 68 km/hr

time taken to cover 221 km is

time = distance / speed

time = 221 / 68 = 3.25

3 + 0.25 * 60 = 3 hours 15 mins

Answer 2

Answer:

195 minutes

Step-by-step explanation:

First of all we find speed of car

Speed=distance/time

distance=51 km

time=45s/60s=0.75hr.

speed=68 m/s

Now, we have given

distance=221 km

speed=68 m/s

time=distance/speed

time=221/68

time=3.25 hr. or 180+15=195 minutes