Cruise liner

The cruise liner runs along the river between points A and B. The journey downstream takes 40 minutes and 1 hour upriver. The flow rate of the river is 3 km/h. What is the speed of a cruise liner?

Correct answer:

v =  15 km/h

Step-by-step explanation:

t1=0:40=0 hr 40 min =0+6040=0.6667 hr0.6667 t2=1 h  (v+3) t1=(v3) t2 (v+3) 0.66666666666667=(v3) 1  0.333333v=5  v=0.333333335=15  v=15=15 km/h

Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips for related online calculators
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?
Do you want to convert velocity (speed) units?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: