In a linear race of 1000 m, A beats B by 50 m or 5 seconds. What is the difference between the speeds (in m/s) of A and B? 

1
\(1 {10 \over 19}\)
2
\({10 \over 19}\)
3
\({9 \over 19}\)
4
\({9 \over 10}\)

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