Four boys, Tom, Seth, Oscar and Ryan saved some money. Seth's savings was
59 of the total savings of Tom, Oscar and Ryan. Tom's savings was 25% of the total savings. Oscar's savings was
12 of the total savings of Seth and Ryan. If Seth's savings was $280, how much less was Tom's savings than the total of the other three boys?
Seth |
Ryan |
Oscar |
Tom |
Total |
5x2 |
9x2 |
14x2 |
3x7 |
1x7 |
4x7 |
2x7 |
1x7 |
|
|
10 u |
4 u |
7 u |
7 u |
28 u |
25% →
25100=
14 Tom's savings : Total savings = 1 : 4
Seth's savings = 10 u
10 u = 280
1 u = 280 ÷ 10 = 28
Tom's savings = 7 u
Savings of the other three boys
= 10 u + 4 u + 7 u
= 21 u
Savings that Tom had less than the total of the three other boys
= 21 u - 7 u
= 14 u
= 14 x 28
= $392
Answer(s): $392