Question

4. A boy is running at a speed 36 km/h and covers a distance of 100m. Calculate the time taken for the journey.​

Answer 1

Answer:

Time taken to cover 1 km = 1/60 hour.

Time taken to cover 300 km = 1/60 × 300 hour.

= 5 hours.

Therefore, time taken to cover 300 km is 5 hours.

2. A man runs at the speed of 15 km per hour. How much time will he take to cover 750 metres?

Speed = 15 km per hour

Distance = 750 metres = 750/1000 km = ¾ km

Time = distance/speed = (3/4 ÷ 15) km

= (3/4 × 1/15) hr

= 1/20 hr

= 1/20 × 60 min = 3 minutes.

Answer 2

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