Four boys, Andy, Zeph, Jeremy and Ken saved some money. Zeph's savings was
12 of the total savings of Andy, Jeremy and Ken. Andy's savings was 10% of the total savings. Jeremy's savings was
27 of the total savings of Zeph and Ken. If Zeph's savings was $380, how much less was Andy's savings than the total of the other three boys?
Zeph |
Ken |
Jeremy |
Andy |
Total |
1x10 |
2x10 |
3x10 |
9x3 |
1x3 |
10x3 |
7x3 |
2x3 |
|
|
10 u |
11 u |
6 u |
3 u |
30 u |
10% →
10100=
110 Andy's savings : Total savings = 1 : 10
Zeph's savings = 10 u
10 u = 380
1 u = 380 ÷ 10 = 38
Andy's savings = 3 u
Savings of the other three boys
= 10 u + 11 u + 6 u
= 27 u
Savings that Andy had less than the total of the three other boys
= 27 u - 3 u
= 24 u
= 24 x 38
= $912
Answer(s): $912