Question

On an average, if a car covers $160km$ in $4$ hours, then it covers ____ km in $2$ hours.

• A. $100$
• B. $40$
• C. $80$
• D. $60$

Answer 1

The correct option is C $80$

Distance traveled by the car in $4$ hours $=160km$

Let $“x”$ be the distance traveled by the car in $2$ hours.
Since the speed of the car is constant, the distance traveled by the car and the time taken will be proportional , i.e.,
$\frac{x}{2}=\frac{160}{4}$
$x=\frac{160}{4}\times 2$
$x=80km$
So at constant speed, the ratio of the distance covered is equal to the ratio of the time taken.