Four boys, Archie, Vincent, Albert and Brandon saved some money. Vincent's savings was
12 of the total savings of Archie, Albert and Brandon. Archie's savings was 30% of the total savings. Albert's savings was
25 of the total savings of Vincent and Brandon. If Vincent's savings was $270, how much less was Archie's savings than the total of the other three boys?
Vincent |
Brandon |
Albert |
Archie |
Total |
1x10 |
2x10 |
3x10 |
7x3 |
3x3 |
10x3 |
5x3 |
2x3 |
|
|
10 u |
5 u |
6 u |
9 u |
30 u |
30% →
30100=
310 Archie's savings : Total savings = 3 : 10
Vincent's savings = 10 u
10 u = 270
1 u = 270 ÷ 10 = 27
Archie's savings = 9 u
Savings of the other three boys
= 10 u + 5 u + 6 u
= 21 u
Savings that Archie had less than the total of the three other boys
= 21 u - 9 u
= 12 u
= 12 x 27
= $324
Answer(s): $324