Question

With a tail wind, a helicopter traveled 300mi in an hour and 40 min. the return trip against the same wind took 20 min longer. find the wind speed and also the air speed of the helicopter.

Answer 1

You can use a equation to solve this question. Consider the speed of wind as x.

Answer 2

okay

Answer 3

The equation is 1/3*(300+x)=1*(300-x), do you know why?

Answer 4

no i got a system of equations.... I said p=air speed and w= wind speed
5/3(p+w)=300
2(p-w)=300

Answer 5

My equation is easy to solve. Distance=time*speed, all right?

Answer 6

i dont understand it

Answer 7

Is the speed of helicopter 300miles per hour?

Answer 8

yes

Answer 9

The speed of the helicopter traveled with trial wind was 300+x, for wind was pushing it forward; the speed of the helicopter came back was 300-x, for wind was pushing it backward, isn't?

Answer 10

yes

Answer 11

The distance the helicopter traveled can be represented by 1/3*(300+x) and 1*(300-x). So we get 1/3*(300+x)=1*(300-x).

Answer 12

why 1/3?

Answer 13

isnt it 5/3 though because it 1hr and 4o min

Answer 14

Oh, I know. So the equation should be 5/3*(300+x)=2*(300-x), right this time?

Answer 15

Thank for your reminding!

Answer 16

okay hold on

Answer 17

27.3?

Answer 18

thats not the answer though