Mathematics
Medium
Question
A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. The speed of the stream is________?
A
7 km/h
B
5 km/h
C
3 km/h
D
2 (1/2) km/h
✓ Official correct answer
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A
7 km/h
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B
5 km/h
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C
3 km/h
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D
2 (1/2) km/h
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