Question

A car is travelling at 40 km/h.
a.How far does it travel in 7 minutes?
b.How long does it take to travel 7 km?
​

Answer 1

Question:

A car is travelling at 40 km/h.

a.How far does it travel in 7 minutes?

b.How long does it take to travel 7 km?

Answers:

Given :

• Speed of car = 40 km/h

A. • Distance covered in 7 minutes =?

$\frac{40 \times 7}{60} \\ = \frac{14}{3} \\ = 4 \frac{2}{3} km$

So, Distance travelled in 7 minutes = 4 2/3 km

B. Time taken to travel 7km = ?

$\frac{60 \times 7}{40} \\ = \frac{21}{2} \\ = 10.5min$

So it took 10.5 min to travel 7km with speed of 40km/h