The ratio of Daniel's money to Pierre's money is 5 : 13. If Pierre has $273, how much must he give to Daniel so both will have the equal amount of money?
| |
Daniel |
Pierre |
Total |
| Before |
5 u |
13 u |
18 u |
| Change |
+ 4 u |
- 4 u |
|
| After |
9 u |
9 u |
18 u |
Comparing Daniel and
Pierre in the end |
1 |
1 |
|
Amount that Pierre has at first = 13 u
13 u = 273
1 u = 273 ÷ 13 = 21
Total amount that Pierre and Daniel have
= 5 u + 13 u
= 18 u
Amount that each of them will have in the end
= 18 u ÷ 2
= 9 u
Amount that Pierre must give to Daniel
= 9 u - 5 u
= 4 u
= 4 x 21
= $84
Answer(s): $84
