he effective speed of a boat is 15.6 km/h against the stream and 20.4 km/h along the stream. Find the speed of the stream
Question
he effective speed of a boat is 15.6 km/h against the stream and 20.4 km/h along the stream. Find the speed of the stream
Solution
To find the speed of the stream, we need to use the given speeds of the boat against and along the stream.
The effective speed of the boat against the stream is the speed of the boat minus the speed of the stream. Let's denote the speed of the boat as 'b' and the speed of the stream as 's'. So, we have:
b - s = 15.6 ...(equation 1)
The effective speed of the boat along the stream is the speed of the boat plus the speed of the stream. So, we have:
b + s = 20.4 ...(equation 2)
To find the speed of the stream 's', we can subtract equation 1 from equation 2:
(b + s) - (b - s) = 20.4 - 15.6 2s = 4.8
So, the speed of the stream 's' is 4.8 / 2 = 2.4 km/h.
Similar Questions
Speed of the motorboat against the stream is 12 km/hr. and speed with the stream is 18 km/hr. Find the speed of motorboat in still water.15 km/hr.16 km/hr.18 km/hr.14 km/hr.
boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. Then what is the velocity of the river water in km/hr ?
1) The speed of a boat in still water is 5km/hr. If the speed of the boat against the stream is 3 km/hr, what is the speed of the stream?1.5 km/hr2 km/hr2.5 km/hr1 km/hr
A man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. The man's rate is?A1 kmphB8 kmphC5 kmphD3 kmph
A boat goes 12 km upstream and 40 km downstream in 8 hours. It can go 16 km upstream and 32 km downstream in 8 hours. Find the speed of the boat in still water and the speed of the stream respectively.
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.