Four boys, Ivan, Jenson, Owen and Japheth saved some money. Jenson's savings was
12 of the total savings of Ivan, Owen and Japheth. Ivan's savings was 30% of the total savings. Owen's savings was
34 of the total savings of Jenson and Japheth. If Jenson's savings was $380, how much less was Ivan's savings than the total of the other three boys?
| Jenson |
Japheth |
Owen |
Ivan |
Total |
| 1x10 |
2x10 |
3x10 |
| 7x3 |
3x3 |
10x3 |
| 4x3 |
3x3 |
|
|
| 10 u |
2 u |
9 u |
9 u |
30 u |
30% →
30100=
310 Ivan's savings : Total savings = 3 : 10
Jenson's savings = 10 u
10 u = 380
1 u = 380 ÷ 10 = 38
Ivan's savings = 9 u
Savings of the other three boys
= 10 u + 2 u + 9 u
= 21 u
Savings that Ivan had less than the total of the three other boys
= 21 u - 9 u
= 12 u
= 12 x 38
= $456
Answer(s): $456
