The fastest commercial airline service is 1450 mi/b. Find the speed in $k m h^{- 1}$ and $m s^{- 1}$

A. $1938 k m h^{- 1}, 618.3 m s^{- 1}$

B. $2030 k m h^{- 1}, 623.1 m s^{- 1}$

C. $2334 k m h^{- 1}, 647.5 m s^{- 1}$

D. $N o n e$

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Correct Answer : C.

1450 \times 1.61 = 2334 k m h^{- 1} 1 m i l e = 1.61 k m

2334 \times \frac{5}{18} m s^{- 1} = 647.5 m s^{- 1}

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