Question

Two cyclist A and B traveled the same distance of 120 kilometers. A traveled 4 kilometers per hour faster than B and covered the distance in one hour less than B. Find the rate of each.

Answer 1

(x+4)\[\frac{ 120 }{ x+4 }=\frac{ 120 }{ x }+1\]
x is the rate at which B is travelling (ie. xkm/h)

Answer 2

There SOLVE FOR x

Answer 3

Wait it's incorrect for some reason. I made a mistake.

Answer 4

Tried solving it, but nothing came out.

Answer 5

120/(x+4) =120/x +1
120/(x+4) =(120+x)/x
120x =(120+x)(x+4)
120x =120x +480 +x^2 +4x
x^2 +4x +480 =0

Answer 6

That's the problem.

Answer 7

which has NO real SOLUTION

Answer 8

It is should be
120/(x+4) =120/x -1

Answer 9

Beacuse A takes 1 hour less than B

Answer 10

U need to solve it

Answer 11

Yeah. A bit of confusion but we got there.

Answer 12

x is a imaginary number.

Answer 13

No. Read suarav's post.

Answer 14

it's not +1 it's -1

Answer 15

-2 + 21.82i or -2-21.82i

Answer 16

\[\frac{ 120 }{ x+4 }=\frac{ 120 }{ x }-1\]

Answer 17

I previously wrote +1

Answer 18

instead of -1

Answer 19

oh really sorry, I have a mistake. x=24.

Answer 20

That's incorrect still. Try again.

Answer 21

really?? . so, x=20, right??? Don't tell me it's still incorect ..:(

Answer 22

Correct. Well done.