A boat goes km downstream in hours, and the same km upstream in hours. What is the speed of the current?
- A
1.5 km/h
- Bcheck_circle
2.5 km/h
- C
1 km/h
- D
3 km/h
Explanation
Downstream: . Upstream: . Solve: , km/h.
Ratios, Rates, Proportional Relationships, and Units
SAT Math· difficulty 5/5
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