Four boys, John, Oscar, Vincent and Ivan saved some money. Oscar's savings was
12 of the total savings of John, Vincent and Ivan. John's savings was 40% of the total savings. Vincent's savings was
12 of the total savings of Oscar and Ivan. If Oscar's savings was $50, how much less was Vincent's savings than the total of the other three boys?
| Oscar |
Ivan |
Vincent |
John |
Total |
| 1x5 |
2x5 |
3x5 |
| 3x3 |
2x3 |
5x3 |
| 2x3 |
1x3 |
|
|
| 5 u |
1 u |
3 u |
6 u |
15 u |
40% →
40100=
25 John's savings : Total savings = 2 : 5
Oscar's savings = 5 u
5 u = 50
1 u = 50 ÷ 5 = 10
Vincent's savings = 3 u
Savings of the other three boys
= 5 u + 1 u + 6 u
= 12 u
Savings that Vincent had less than the total of the three other boys
= 12 u - 3 u
= 9 u
= 9 x 10
= $90
Answer(s): $90
