The ratio of Ivan's money to Cole's money is 11 : 15. If Cole has $540, how much must he give to Ivan so both will have the equal amount of money?
| |
Ivan |
Cole |
Total |
| Before |
11 u |
15 u |
26 u |
| Change |
+ 2 u |
- 2 u |
|
| After |
13 u |
13 u |
26 u |
Comparing Ivan and
Cole in the end |
1 |
1 |
|
Amount that Cole has at first = 15 u
15 u = 540
1 u = 540 ÷ 15 = 36
Total amount that Cole and Ivan have
= 11 u + 15 u
= 26 u
Amount that each of them will have in the end
= 26 u ÷ 2
= 13 u
Amount that Cole must give to Ivan
= 13 u - 11 u
= 2 u
= 2 x 36
= $72
Answer(s): $72
