A person can swim in water with a speed of 13 km/hr in still water. If the speed of the stream is 4km/hr, how much time will it take for a person to 68 km downstream? First person to help I will mark as brainliest!!
Answers
Answer:
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream. Explanation: Speed downstream = (13 + 4) km/hr = 17 km/hr.
Step-by-step explanation:
Given,
The person's swimming speed = 13km/h.
The stream's speed = 4km/h.
To Find,
The time is taken by the person to swim 68km downstream.
Solution,
Given that,
The swimming speed of the person = 13km/h.
The speed of the stream = 4km/h.
The speed the person takes swim downstream=
swimming speed of the person in water + speed of stream =
13+4 = 17km/h.
Here,
The distance the person swims downstream = 68km.
Therefore,
The time to swim 68km downstream = distance / speed
68/17 = 4hrs.
Hence, 4hr is taken by the person to swim 68km downstream.