Question

A car is travelling at constant speed and it covers a distance of 50 km in 3 hours, then what will be the distance travelled by car in 9 hours?

• A. 180 km
• B. 150 km
• C. 200 km
• D. 140 km

Answer 1

The correct option is B

150 km

Let us assume, distance travelled by car in 9 hours is y.

$\begin{array}{ccc}Distance\left(inkm\right)& 50& y\\ Timetaken\left(inhours\right)& 3& 9\end{array}$

Given, the car is travelling at the constant speed. So, distance travelled and time taken are directly proportional to each other.

$⟹\frac{50}{3}=\frac{y}{9}$

$⟹y=\frac{50\times 9}{3}$

$⟹y=150$

$\therefore$ Distance travelled by car in 9 hours is 150 km.