- A5 : 1
- B3 : 2
- C7 : 1
- D2 : 1
Step-by-Step Solution
(/U) : : 4 ⇒ . Then ⇒ ⇒ 5 : 1.
Answer: A) 5 : 1
The time a boat takes to go d km upstream and the time it takes to go 2d km downstream are in the ratio 3 : 4. What is the ratio of its still-water speed to the current's speed?
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