A steamer goes downstream and covers the distance between the two ports in 4 hours while it covers the same distance upstream in 5 hours. If the speed of the stream is 2 km/h, find the speed of the steamer.
2007-07-16 05:37:38 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
x = speed of steamer
x+ 2 = speed dowmstream
x-2 = speed upstream
rate times time = distance
4x = 5(x-2)
4x = 5x-10
x = 10 km/hour
2007-07-16 05:43:34 · answer #1 · answered by ironduke8159 7 · 2⤊ 0⤋
The speed of the steamer is 16 km/h. The difference in its speed going up and down the stream is 4 km/h, which made a difference of one hour. Multiply 4 km/h by 4 hours and you get 16 km/h
2007-07-16 12:44:35 · answer #2 · answered by Anonymous · 0⤊ 3⤋
(Speed+2)4=distance
(Speed-2)5=disance
distance=distance
(speed+2)4=(speed-2)5
4S+8 =5S-10
18 kmh =S
2007-07-16 13:24:29 · answer #3 · answered by bignose68 4 · 0⤊ 0⤋