1.

A truck covers a distance of 550 meters in 1 minute, whereas a bus covers a distance of 33 km in 45 minute. The ratio of their speed is:

A. 3 ∶ 4
B. 2 ∶ 1
C. 2 ∶ 7
D. 3 ∶ 5
Answer» B. 2 ∶ 1


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