Math, asked by arpitsingh713, 5 months ago

A boat cover a distance from P to Q downstream and
return at original place upstream which flow at the rate
of 2.5 km/h. If the speed of boat in still water is 12.5 km/
h. Find average speed of journey.​

Answers

Answered by amanjariya858
0

Answer:

Answer

Let distance be x km

Speed downstream = 5+2 = 7 km /hr.

Speed upstream = 5-2 = 3 km/hr.

So

3

x

7

x

=2

7x−3x=2×21

4x = 42

x=

4

42

=10.5 km/h

solution

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