Question

7. A car travels at 45 km per hour. How much time will it take to cover 90 km?
8. Vibha has to go to a stadium 12 km away. If she cycles at a speed of 15 km/hour, how much
time will it take to reach the stadium?
9. If Mohini runs at a speed of 25 km per hour, how long will she take to run a 800-metre race?
0. A boy runs at a speed of 8 metres per second. How long does he take to cover a distance
of 1 km?
1. A car has to cover 280 km in 5 hours. For the first three hours it travels at a speed of 50 km
per hour. What should be its speed after that to reach the destination in the desired time?
2. An aeroplane takes 3 hours to travel a distance of 3 300 km. Another aeroplane travels at a
speed which is 100 km per hour less than the first aeroplane. How long will it take to travel
the same distance by the second aeroplane?
Two sprinters run the same race of 100 metres. One runs at a speed of 10 metres per
second and the other runs at 8 metres per second. By what time will the first sprinter beat
the other sprinter?
3.​

Answer 1

Answer:

7

Step-by-step explanation:

2 hours it take to cover

Answer 2

Answer:

2 hrs

Step-by-step explanation:

speed =45km per hour

distance=speed * time

90=45*time

time =2