Four boys, Elijah, Xavier, Tom and John saved some money. Xavier's savings was
411 of the total savings of Elijah, Tom and John. Elijah's savings was 30% of the total savings. Tom's savings was
16 of the total savings of Xavier and John. If Xavier's savings was $80, how much less was Elijah's savings than the total of the other three boys?
Xavier |
John |
Tom |
Elijah |
Total |
4x2 |
11x2 |
15x2 |
7x3 |
3x3 |
10x3 |
6x3 |
1x3 |
|
|
8 u |
10 u |
3 u |
9 u |
30 u |
30% →
30100=
310 Elijah's savings : Total savings = 3 : 10
Xavier's savings = 8 u
8 u = 80
1 u = 80 ÷ 8 = 10
Elijah's savings = 9 u
Savings of the other three boys
= 8 u + 10 u + 3 u
= 21 u
Savings that Elijah had less than the total of the three other boys
= 21 u - 9 u
= 12 u
= 12 x 10
= $120
Answer(s): $120