A train is running at a uniform speed of 60km/h. How much time it will take to cover a distance of 300km?
5 h
4.5 h
6 h
7 h
$$speed=\frac{distance}{time}$$ $$time=\frac{distance}{speed}$$ $$time=\frac{300}{60}h$$ $$time=5 hr$$
If a man walks 17 km in 5 hours, how long(in hrs) would he take to walk 20.4 km
6
5
8
None of these
Time taken to walk 17km=5hrs. Time taken to walk $1km=\dfrac{5}{17}hrs.$ Time taken to walk $20.4km=\dfrac{5}{17} \times20.4$
$=6 hrs.$
A man runs round a circular field of radius 50m at the speed of 12km/hr. What is the time taken by the man to take twenty rounds of the field?
30 min
32 min.
34 min.
Two boys P and Q walk at 6 km/hr and 6 km/hr respectively. If Q covers a certain distance in 10 minutes less than P. What is the time taken by Q to cover the same distance (in minutes)?
40
60
30
70
A can run 1 km in 4 min 54 sec and B in 5 min. How many metres start can A can give B in a km race so that the race may end in a dead heat ?
16 m
18 m
20 m
22 m
Distance covered by B in 6 sec $= \dfrac{(1000}{300}×6)=20 m$