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

A. 4 : 3

B. 3 : 5

C. 3 : 4

D. 50 : 3

Solution:

Speed of track = 550 per minute.
Speed of bus =

\frac{33 kms}{45}

\frac{33000}{45}

= 733.33 m/minute
Ratio of their speeds =

\frac{550}{733.33}

= 3 : 4

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