Mathematics
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Medium
Question
Towns X, Y, Z lie on a river with Y midway. A boat goes X to Y and back in 10 hours and X to Z in 4 hours. Find boat : current speed.
A
2 : 5
B
5 : 3
✓ Official correct answer
C
3 : 5
D
1 : 2
Community credibility
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A
2 : 5
No member explanations yet for this option.
B
5 : 3
No member explanations yet for this option.
C
3 : 5
No member explanations yet for this option.
D
1 : 2
No member explanations yet for this option.
Explanation
From the up/down equations, boat : current = 5 : 3.