Question

5. David's average driving speed for 5 hours journey was 55 km/h. During his first two hours of journey,
he drove at 60 km/h, and last two hours he drove at 50 km/h. What was his speed for the fifth hour of
the journey?
6. A train 300 m long is travelling at 85 km/h. Find the time taken by it:
a) to cross a signal.
b) to go past the platform 500 m long.
7. A train passes 300 m long platform in 30 s and it crosses a signal on the station in 12 s. Find:
a) the speed of the train in km/h.
b) the length of the train.​

Answer 1

Answer:

6 question ka 6 question ka answer hai 7th question ka answer hai be