Question
One of he two buses completes a journey of 300 km in `7 1/2` hours and the other a journey of 450 km in 9 hours.
The ratio of their average speeds is
Answer: Option C
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Ratio of speeds = `(300 xx 2/15) ` : `(450/9)` = 40 : 50 = 4 : 5.
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