A boat has to travel upstream 20 km distance from point X of a river to point Y.
A boat has to travel upstream 20 km distance from point X of a river to point Y. The total time taken by boat in travelling from point X to Y and Y to X is 41 minutes 40 seconds. What is the speed of the boat?
Answer/Solution
Data inadequate
Steps/Work
Let x be the speed of the boat.
and y the speed of the current.
20/x−y+20/x+y=25/36
In this equation there are two variables, but only one equation, so, the value of ‘x’ cannot be determined.
Answer D
and y the speed of the current.
20/x−y+20/x+y=25/36
In this equation there are two variables, but only one equation, so, the value of ‘x’ cannot be determined.
Answer D