Question (45/53)
A truck covers a distance of 550 meters in 1 minute, where as a bus covers a distance of 33 km in 45 minutes. What is ratio of their speeds ?(A) 3 : 4
(B) 4 : 5
(C) 3 : 5
(D) 5 : 7
Question (46/53)
One of two buses completes a journey of 300 km in `7 1/2` hours and the other a journey of 450 km in 9 hours. What is ratio of their average speeds ?(A) 2 : 3
(B) 3 : 4
(C) 4 : 5
(D) 8 : 9