Question

A bus travels 40 km in 30 minutes. If the speed of the bus remains the same, how far can it travel in 3 hours?

• A. 200 kms
• B. 220 kms
• C. 240 kms
• D. 250 kms

Answer 1

The correct option is C 240 kms

Given: Distance travelled in 30 mins (0.5 hours) = 40 km
To find: Distance traveled in 180 mins (3 hours)

$\text{Since, Distance (x)}\propto \text{Time taken(y)}$

$\frac{x_1}{y_1}=\frac{x_2}{y_2}$

$x_1=40km{y}_1=30min{y}_2=180min{x}_2=\text{Distance travelled in 180 min}$

On substituting the values,

$\frac{40}{30}=\frac{x_2}{180}$

$x_2=\frac{40\times 180}{30}$

$x_2=240km$

Hence, the distance travelled in 180 minutes is 240 km.