Question

A watercraft goes downstream from one point to another in 19 hours. It covers

the same distance upstream in 23 hours. If the speed of the stream is 2 kmph, then

find the distance between the two points?​

Answer 1

Answer:

437km

Step-by-step explanation:

goes downstream time (x=19hours)

for upstrem is (y=23hours)

speed of the stream (z=2kmph)

speed of watercraft = z(x+y/x-y)

                                   =2(42/4)

                                    =21kmph

the distance between the points =(watrecraft speed+speed of stream) *x

                                                                 =(21+2)kmph*19hr

                                                                 =437km