Four boys, Japheth, Glen, Sam and Michael saved some money. Glen's savings was
25 of the total savings of Japheth, Sam and Michael. Japheth's savings was 30% of the total savings. Sam's savings was
25 of the total savings of Glen and Michael. If Glen's savings was $200, how much less was Sam's savings than the total of the other three boys?
| Glen |
Michael |
Sam |
Japheth |
Total |
| 2x10 |
5x10 |
7x10 |
| 7x7 |
3x7 |
10x7 |
| 5x7 |
2x7 |
|
|
| 20 u |
15 u |
14 u |
21 u |
70 u |
30% →
30100=
310 Japheth's savings : Total savings = 3 : 10
Glen's savings = 20 u
20 u = 200
1 u = 200 ÷ 20 = 10
Sam's savings = 14 u
Savings of the other three boys
= 20 u + 15 u + 21 u
= 56 u
Savings that Sam had less than the total of the three other boys
= 56 u - 14 u
= 42 u
= 42 x 10
= $420
Answer(s): $420
