SUBJECT: MATHEMATICS Speed, Distance, Time Class: VII This paper consists of 2 printed pages. 1. Convert the following speed into m/s Answers a)225km/h a) 62.5m/s b)13.5km/h 1 b)3.75m/s c) 42 km/h c)1.25m/s 2. Convert the following speed into km/h a)15m/s b)28m/s a)54 km/ c)34 m/s b)100.8 km/h c)122.4km/h 3. Raunak his driving his car at a speed of 42km/h. Find the distance 29.4km covered by him in 42 minutes? 4. 1 1 A car travels first 100km in 22 hours and the next 30 km in 2 hour. 43.33km/h What is the average speed? 5. 1 A train 250metres long passes a pole in 122seconds. How long will 37.5s it take to pass a platform of 500 m long? 6. 1 An auto rickshaw covers first 40 km in 12 hours and then travels at 32.5km/h a speed of 50 km/h. Find the average speed of the auto rickshaw for the whole journey. 7. The speed of a train is 90 km/h. What is the distance covered by it in 10 minutes? (1) 15 km/h 8. A car covers a distance of 624 km in 6 ½ hours. Find its speed? 9. A car covers 72 km in 10 minutes. Calculate its speed in km/h. 45km/h 10. In what time will a railway train 60 m long moving at the rate of 36 6 sec 1 96km/h km/h pass a telegraph post on its way? 11. The speed of a car is 90 km in the first hour and 60 km in the 75 km/h second hour. What is the average speed of the car? 12. A train 100 meters long completely crosses a 300 meters long 32km/h bridge in 45 seconds. What is the speed of the train in km/h? 13. A 180 meter long train crosses a man standing on the platform in 6 108km/h sec. What is the speed of the train in km/h? 14. How many seconds will a train 100 meters long take to cross a 25sec bridge 150 meters long if the speed of the train is 36 km/h? 15. A man covers 2.5 km in five minutes .Find the speed in km/h 30km/h 16. A car covers a distance of 80 km at a speed of 60km/h and another 66km/h 140km at a speed of 70km/h. Find the average speed of the car for the whole journey. (2) (3)