Question

1. The distance between two stations is 540 km. A train takes 3 hours to cover this
distance Calculate the speed of the train in km/hr and mis
2. A train covered first 120 km at a speed of 20 km an hour and then covered the
remaining 180 km at a speed of 45 km an hour. Find its average speed.
3. A motorist travels one hour at an average speed of 45 kmph and the next hour at an
average speed
of 65 kmph. Then what is his average speed?
4. A person travels at a speed of 60 kms per hour. Then how many meters can he travel
in 5 minutes ?
5. A simple pendulum takes 15 seconds to complete 5 oscillations. What is the time
period of pendulum?​

Answer 1

Explanation:

Distance covered by train S=240 km

Time taken by train to cover this distance t=4 hrs

Thus speed of train v=

t

S

∴ v=

4

240

=60 km/hr