A car is travelling at 40 km/h. a. How long does it take to travel 7 km? b. How far does it travel in 7 minutes?
Answers
Step-by-step explanation:
Distance travel in 7 minutes. Solution: We know that, 1 hr = 60 min. ∵ Car is travelling 40 km in 1 hr i.e. 60 min.
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Step-by-step explanation:
Given:
A car is travelling 40 kilometre per hour.
Required to Find:
A. Time taken to travel 7 km.
B. Distance travel in 7 minutes.
Solution:
We know that, 1 hr = 60 min.
∵ Car is travelling 40 km in 1 hr i.e. 60 min.
\begin{gathered}Time taken to travel 7 km=\frac{60*7}{40}min\\=\frac{21}{2}min\\=10.5min\end{gathered}
Timetakentotravel7km=
40
60∗7
min
=
2
21
min
=10.5min
∴ Time taken to travel 7 km = 10.5 min
Now,
In 60 min car travels 40 km.
In7mincartravels=
60
40∗7
km
=
3
14
km
=4
3
2
km
∴In 7 min car travels = 4\frac{2}{3}km4
3
2
km
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