Question

Roshan travels 180 km in 3 hours and 20 minutes by his car. Calculate the speed of his car in metres per
second
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Answer 1

Answer:

15m/sec

Step-by-step explanation:

1 km = 1000 m

180 km= 180×1000=180000 m

1 hr = 60 mins

3 hrs = 3×60 = 180 mins

1 min= 60 seconds

3 hrs 20 min = 200 min

200 mins= 200×60=12000 seconds

speed = distance/time

= 180000/12000

= 180/12

= 15m/second