Question

Palmer's average running speed is 3km/h faster than his walking speed. If Palmer can run around a 30-kilometer course in 2h, how many hours would it take for Palmer to walk the same course?

Answer 1

30km/2h would give you his running speed.

So the answer to that minus 3 would give you his walking speed. Divide 30km by that answer to get the number of hours.

Answer 2

30/2=15-3=12
12/30= the answer?

Answer 3

0.4

Answer 4

noooo 30/12.

Answer 5

" running speed is 3km/h faster than his walking speed"
Let r = running speed, w is walking speed
-->r = w + 3 ( km/h )

Agree?

Answer 6

I guess

Answer 7

Yes please

Answer 8

" run around a 30-kilometer course in 2h"
-> r = 30 km/ 2 hr = ...?

Answer 9

15

Answer 10

15+3?

Answer 11

W=15?

Answer 12

w = r - 3

Answer 13

r = 15 => w = ..?

Answer 14

time = distance / walking speed
= 20 / 12 = ... hr

Answer 15

Where does 20 comes from?

Answer 16

Oops 30/12 =

Answer 17

2.5

Answer 18

= 2 hr 30 min

Answer 19

Such a saviour ;-)

Answer 20

I hope you can learn from it ;)

Answer 21

I will gonna study and understand this for my exam
Thanks a lot;-)