Four boys, Xavier, Vincent, Brandon and Tommy saved some money. Vincent's savings was
78 of the total savings of Xavier, Brandon and Tommy. Xavier's savings was 30% of the total savings. Brandon's savings was
16 of the total savings of Vincent and Tommy. If Vincent's savings was $280, how much less was Xavier's savings than the total of the other three boys?
Vincent |
Tommy |
Brandon |
Xavier |
Total |
7x2 |
8x2 |
15x2 |
7x3 |
3x3 |
10x3 |
6x3 |
1x3 |
|
|
14 u |
4 u |
3 u |
9 u |
30 u |
30% →
30100=
310 Xavier's savings : Total savings = 3 : 10
Vincent's savings = 14 u
14 u = 280
1 u = 280 ÷ 14 = 20
Xavier's savings = 9 u
Savings of the other three boys
= 14 u + 4 u + 3 u
= 21 u
Savings that Xavier had less than the total of the three other boys
= 21 u - 9 u
= 12 u
= 12 x 20
= $240
Answer(s): $240