Advertisements
Advertisements
प्रश्न
A train covers 51 km in 3 hours. Calculate its speed. How far does the train go in 30 minutes?
Advertisements
उत्तर
Given: Distance = 51 km
Time = 3 hours
∴ Speed = `"Distance"/"Time"`
= `51/3`
= 17 km/h
Now,
Time = 30 minutes = `30/60` h = `1/2` h
Speed = 17 km/h
∴ Distance travelled = Speed × Time
= `17xx1/2`
= 8.5 km
APPEARS IN
संबंधित प्रश्न
A can do a piece of work in 4 days and B can do the same work in 5 days. Find, how much work can be done by them working together in:
- one day
- 2 days
What part of work will be left, after they have worked together for 2 days?
Mohit can complete a work in 50 days, whereas Anuj can complete the same work in 40 days. Find:
(i) work done by Mohit in 20 days.
(ii) work left after Mohit has worked on it for 20 days.
(iii) time taken by Anuj to complete the remaining work.
A motorist travelled the distance between two towns, which is 65 km, in 2 hours and 10 minutes. Find his speed in metre per minute.
A boy drives his scooter with a uniform speed of 45 km/h. Find the distance covered by him in 1 hour 20 min.
I travel a distance of 10 km and come back in `2 1/2` hours. What is my speed?
Anbarasan travelled 350 Km at the speed of 70 Km/hour. Find the time taken for his travel
These log boats do not go very far. If the wind is helpful, then travel about 4 km in one hour.
Guess how far you can go in one hour if you walk fast.
In one trip the logboat brings about 20 kg of fish. But other types of boats bring a bigger catch as given in the table. The table also shows the speed of each type of boat, which is how far each boat goes in one hour. Look at the table and calculate -
- About how far can a motorboat go in six hours?
| Type of boat | Catch of fish in one trip (in kg) |
Speed of the boat (how far it goes in one hour) |
| Log boat | 20 | 4 km per hour |
| Long tail boat | 600 | 12 km per hour |
| Motorboat | 800 | 20 km per hour |
| Machine boat | 6000 | 22 km per hour |
What is the correct relationship between speed (S), distance (D), and time (T)?
If a car travels at a constant speed of 45 km/h for 3 hours, what distance will it cover?
