Advertisements
Advertisements
प्रश्न
A racing car covered 600 km in 3 hours 20 minutes. Find its speed in metre per second. How much distance will the car cover in 50 sec?
Advertisements
उत्तर
Distance covered = 600 km
Time taken = 3 hr 20 min
= `3 20/60=3 1/3=10/3`hrs
∴ Speed in km/h = `"Distance"/"Time"`
= `600/(10/3)`
= `(600xx3)/10` km/h
= 180 km/h
and Speed in m/sec = `(180xx1000)/(60xx60)`
= 50 m/sec
and Distance covered in 50 seconds
= Speed × Time
= 50 × 50 m
= 2500 m or 2.5 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?
A and B take 6 hours and 9 hours respectively to complete a work. A works for 1 hour and then B works for two hours.
(i) How much work is done in these 3 hours?
(ii) How much work is still left?
A is able to complete `1/3` of a certain work in 10 hrs and B is able to complete `2/5` of the same work in 12 hrs. Find:
(i) how much work can A do in 1 hour ?
(ii) how much work can B do in 1 hour ?
(iii) in how much time will the work be completed, if both work together.
A, B and C together finish a work in 4 days. If A alone can finish the same work in 8 days and B in 12 days, find how long will C take to finish the 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 train travels 700 metres in 35 seconds. What is its speed in km/h?
| S.No | Speed | Distance | Time (Hours) |
| i | 35 Km/hour | 280 Km | |
| ii | 40 Km/hour | 360 Km | |
| iii | 45 Km/hour | 315 Km | |
| iv | 50 Km/hour | 300 Km | |
| v | 55 Km/hour | 275 Km |
Nazar travelled 360 Km at the speed of 90 Km/hour. Find the time taken for his travel
Fathima reached 480 Km at the speed of 120 Km/hour. How much time did she travelled?
Look at the different types of boats.
Some boats have motors and go further into the sea. since they go far out they can catch more fish. These boats travel faster, at a speed of about 20 km in one hour.
How far would the motorboats go in three and a half hours?
