Cross-Multiplication Method of Finding Solution of a Pair of Linear Equations
Speed of a ma...
Question
Speed of a man in still water is 6 km/hr and the river is running at 4km/hr. The total time taken to go to a place and come back is 18 hours. What is the distance traveled?
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Solution
Let the total distance be d
Speed in upstream = 2Km/Hr
Speed in downstream = 10Km/Hr
According to question , d2+d10=18Hrs
Solving we get d=30Km So Total distance travelled = 60Km