Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Distance between two towns = 65 km
Time taken = 2 hr 10 min
= `2 10/60=2 1/6=13/6`hrs
∴ Speed = `"Distance"/"Time"`
= `65/(13/6)`
= `(65xx6)/13`km/h
= 30 km/h
and speed in m/minute = `(30xx1000)/60`
= 500 m/minute
APPEARS IN
संबंधित प्रश्न
A and B working together can do a piece of work in 10 days B alone can do the same work in 15 days. How long will A alone take to do the same work?
Joseph and Peter can complete a work in 20 hours and 25 hours respectively. Find :
(i) work done by both together in 4 hrs.
(ii) work left after both worked together for 4 hrs.
(iii) time taken by Peter to complete the remaining work.
Shaheed can prepare one wooden chair in 3 days and Shaif can prepare the same chair in 4 days. If they work together, in how many days will they prepare:
(i) one chair?
(ii)14 chairs of the same kind?
A train covers 51 km in 3 hours. Calculate its speed. How far does the train go in 30 minutes?
| 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 |
Wilson reached 240 Km at the speed of 60 Km/hour. How much time did he travelled?
Anbarasan travelled 350 Km at the speed of 70 Km/hour. Find the time taken for his travel
Nazar travelled 360 Km at the speed of 90 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.
How long will they take to go a distance of 10 km?
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 |
