Advertisements
Advertisements
प्रश्न
Rohit goes 350 km in 5 hours. Find:
(i) his speed
(ii) the distance covered by Rohit in 6.2 hours
(iii) the time taken by him to cover 210 km.
Advertisements
उत्तर
Distance covered = 350 km
Time taken = 5 hours
(i) ∴ Speed = `"Distance"/"Time"`
= `350/5`
= 70 km/h
(ii) Distance covered in 6.2 hours
= 70 × 6.2 km
= 434 km
(iii) Time taken to cover 210 km
= `"Distance"/"Time"`
= `210/70` hr
= 3 hours
APPEARS IN
संबंधित प्रश्न
A, B and C can do a piece of work in 12, 15 and 20 days respectively. How long will they take to do it working together?
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 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 train covers 51 km in 3 hours. Calculate its speed. How far does the train go in 30 minutes?
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
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?
The SI unit of speed is:
A vehicle covers 240 km in 4 hours. What is its speed?
If a car travels at a constant speed of 45 km/h for 3 hours, what distance will it cover?
