Four boys, Bobby, Elijah, Archie and Rael saved some money. Elijah's savings was
15 of the total savings of Bobby, Archie and Rael. Bobby's savings was 30% of the total savings. Archie's savings was
25 of the total savings of Elijah and Rael. If Elijah's savings was $140, how much less was Archie's savings than the total of the other three boys?
Elijah |
Rael |
Archie |
Bobby |
Total |
1x5 |
5x5 |
6x5 |
7x3 |
3x3 |
10x3 |
5x3 |
2x3 |
|
|
5 u |
10 u |
6 u |
9 u |
30 u |
30% →
30100=
310 Bobby's savings : Total savings = 3 : 10
Elijah's savings = 5 u
5 u = 140
1 u = 140 ÷ 5 = 28
Archie's savings = 6 u
Savings of the other three boys
= 5 u + 10 u + 9 u
= 24 u
Savings that Archie had less than the total of the three other boys
= 24 u - 6 u
= 18 u
= 18 x 28
= $504
Answer(s): $504