Four boys, Carl, Lee, Pierre and Billy saved some money. Lee's savings was
411 of the total savings of Carl, Pierre and Billy. Carl's savings was 25% of the total savings. Pierre's savings was
12 of the total savings of Lee and Billy. If Lee's savings was $640, how much less was Carl's savings than the total of the other three boys?
Lee |
Billy |
Pierre |
Carl |
Total |
4x4 |
11x4 |
15x4 |
3x15 |
1x15 |
4x15 |
2x15 |
1x15 |
|
|
16 u |
14 u |
15 u |
15 u |
60 u |
25% →
25100=
14 Carl's savings : Total savings = 1 : 4
Lee's savings = 16 u
16 u = 640
1 u = 640 ÷ 16 = 40
Carl's savings = 15 u
Savings of the other three boys
= 16 u + 14 u + 15 u
= 45 u
Savings that Carl had less than the total of the three other boys
= 45 u - 15 u
= 30 u
= 30 x 40
= $1200
Answer(s): $1200