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) ratio 1:5	C) ratio 1:10	D) ratio 9:13	E) ratio 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?