Four boys, Liam, Gabriel, Oliver and Riordan saved some money. Gabriel's savings was
13 of the total savings of Liam, Oliver and Riordan. Liam's savings was 10% of the total savings. Oliver's savings was
18 of the total savings of Gabriel and Riordan. If Gabriel's savings was $105, how much less was Oliver's savings than the total of the other three boys?
| Gabriel |
Riordan |
Oliver |
Liam |
Total |
| 1x5 |
3x5 |
4x5 |
| 9x2 |
1x2 |
10x2 |
| 8x2 |
1x2 |
|
|
| 5 u |
11 u |
2 u |
2 u |
20 u |
10% →
10100=
110 Liam's savings : Total savings = 1 : 10
Gabriel's savings = 5 u
5 u = 105
1 u = 105 ÷ 5 = 21
Oliver's savings = 2 u
Savings of the other three boys
= 5 u + 11 u + 2 u
= 18 u
Savings that Oliver had less than the total of the three other boys
= 18 u - 2 u
= 16 u
= 16 x 21
= $336
Answer(s): $336
