Math Problem Statement
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Ratios
Speed and Distance
Formulas
Time = Distance / Speed
T = d / (v + r) + d / (v - r)
New Time = (80/161)T = d / (2v + r) + d / (2v - r)
Theorems
Concept of relative motion in water currents
Suitable Grade Level
Grades 10-12
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