1.

A Motor Boat Covers A Certain Distance Downstream In 30 Minutes, While It Comes Back In 45 Minutes. If The Speed Of The Stream Is 5 Kmph What Is The Speed Of The Boat In Still Water?

Answer»

Let the SPEED of boat in still WATER: X kmph

As distance is CONSTANT; (x+5) *30=(x-5) *45

or, 2x+10=3x-15

x = 25 kmph

Let the speed of boat in still water: x kmph

As distance is constant; (x+5) *30=(x-5) *45

or, 2x+10=3x-15

x = 25 kmph



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