A truck covers a distance of 200 metres in 1 minute whereas a bus covers a distance of 100kms in 50minutes. The ratio of their speeds is? Choose the correct choice
A) 2:3
B) 1:5
C) ratio 1:10
D) 9:13
E) 7:15
Ratio of speeds = (200/60) 18/5 : 60*100/50 = 12:120 = 1:10   Answer is ratio 1:10
<result>C</result>
A truck covers a distance of 200 metres in 1 minute whereas a bus covers a distance of 100kms in 50minutes. The ratio of their speeds is?