Question

A bus travels 126 km in 3 hours and a train travels 315 km in 5 hours . The ratio of their speeds is ______ .

• A. 126 : 315
• B. 2 : 3
• C. 1 : 3
• D. 3 : 5

Answer 1

The correct option is B 2 : 3

$\Rightarrow$ A bus travels $126km$ in $3hrs$.

$\Rightarrow$ A train travels $315km$ in $5hrs$.

$\Rightarrow$ We know, $Speed=\frac{Distance}{Time}$

$\therefore$ Speed of bus = $\frac{126}{3}=42km/hr$

$\therefore$ Speed of train = $\frac{315}{5}=63kmhr$

$\therefore$ Ratio of speeds = $\frac{42}{63}=\frac{2}{3}=2:3$