Question

DETERMINE THE SPEED OF STREAM AND OF BOAT​

Answer 1

Answer:

this is the answer according to me

Step-by-step explanation:

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Answer 2

Answer:

Let the speed of the stream be u kmph

let the speed of the boat be v kmph

speed upstream will be v- u kmph

speed downstream will be v + u kmph

30 km upstream in the duration = 30 /(v - u ) hrs

40 km downstream in the duration 34 /( v + u) hrs

44 / ( v + u ) +30 /(v - u) = hrs eq 1

Similarly

40 / ( v - u ) + 55 / ( v + u) = 13 hrs multiplied with 3/4

30 / (v - u ) +165/4 ( v + u )=39/4 eq 2

Now eq 1 -2 ( 44 - 165/4)/( v + u )=10-39/4 =1/4

= v + u = 11 eq 3

substitute this in eq 1 we get

44/11 + 30/( v - u ) = 10

= v - u = 30 /6 =5 eq 4

solving eq 3 and 4 we get v = 8 kmph and u = 3 kmph

Step-by-step explanation:

I hope this answer helps u