Amotorboat takes 5 hours to travel 500 km up stream the return trip takes 4 hours going down stream. what is the rate of the boat in still water? and what is the rate of the current

  25 km

Step-by-step explanation:

500 km / 5 = 100 km up stream

500 km / 4 =  125 km down stream

125 - 100 = 25 km in still water

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it