Question

A covers 16Km against at a stream and 27Km along stream. In each case, it taken 5 hours time.
Find out the speed of the stream

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Answer 1

Answer:

Speed of Stream is 1.1km/h

Step-by-step explanation:

Let speed of stream be y and speed of A be x

then

16km in 5h speed = 3.2km/h = (x-y)km/h

27km in 5h speed = 5.4km/h = (x+y)km/h

x-y = 3.2                          ...(i)

x+y = 5.4                         ...(ii)

2x= 8.6km/h             x= 4.3km/h

y = x-3.2 = 4.3-3.2 = 1.1km/h

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Answer 2

Step-by-step explanation:

speed of streem = X

speed of boat = Y

speed in down streem X + Y

time = 5 hours

distance = 27 km

speed = distance/time

X + Y = 27/5-----------> I

speed in up streem = X - Y

distance= 16 km

time = 5 hours

speed = distance/time

X - Y = 16/5------------>II

I + II

2X = 43/5

X= 43/10 = 4.3 KMPH

I - II

2Y = 11/5

Y=11/10= 1.1 KMPH

Speed of the boat = X = 4.3 kmph

Speed of the boat = X = 4.3 kmphspeed of the streem = 1.1 kmph