Tom and Bill agreed to race across a 50 foot pool and back again. They started together but Tom finished 10-ft ahead of Bill. If their rates were constant and Tom finished the race in 27 seconds, how long did Bill take to finish it?
A. 28 seconds
B. 30 seconds
C. 33.33 seconds
D. 35 seconds
E. 37 seconds
সঠিক উত্তরঃ
B.
30 seconds
Explanation:
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