A truck covers a distance of 550 metres in 1 minute whereas a bus covers a distance of 33 kms in 45 minutes. The ratio of their speed is :

A. 3 : 4

B. 4 : 3

C. 3 : 5

D. 50 : 3

Answer: Option A

Solution(By Examveda Team)

Ratio of speeds :
$$\eqalign{ & = \left( {\frac{{550}}{{60}} \times \frac{{18}}{5}} \right):\left( {\frac{{33}}{{45}} \times 60} \right) \cr & = 33:44 \cr & = 3:4 \cr} $$