Aboat travels 60 km upstream
(against the current) in 5 hours.
the boat travels the same distance
downstream in 3 hours. what is the
rate of the boat in still water? what
is the rate of the current?

16 km/h   ….. still water boat rate

4 km/h   …. Current rate

Step-by-step explanation:

The speed of the boat supposed to be x km/h

The current rate is y km/h

(x + Y) * 3 = 60

(x – y) * 5 = 60

3x + 3y =60 ….. ①

5x – 5y = 60 ….. ②

① * 5 … 15x + 15y = 300   … ①’

② * 3 … 15x – 15y = 180   … ②’

①’- ②’ … 30y = 120

Y = 4 km/h   …. Current rate

15x = 300 – 15*4 = 240

X = 16 km/h   ….. still water boat rate

answer: need picture of problem

step-by-step explanation:

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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