Four boys, Japheth, Archie, Howard and Bobby saved some money. Archie's savings was
16 of the total savings of Japheth, Howard and Bobby. Japheth's savings was 30% of the total savings. Howard's savings was
16 of the total savings of Archie and Bobby. If Archie's savings was $300, how much less was Japheth's savings than the total of the other three boys?
Archie |
Bobby |
Howard |
Japheth |
Total |
1x10 |
6x10 |
7x10 |
7x7 |
3x7 |
10x7 |
6x7 |
1x7 |
|
|
10 u |
32 u |
7 u |
21 u |
70 u |
30% →
30100=
310 Japheth's savings : Total savings = 3 : 10
Archie's savings = 10 u
10 u = 300
1 u = 300 ÷ 10 = 30
Japheth's savings = 21 u
Savings of the other three boys
= 10 u + 32 u + 7 u
= 49 u
Savings that Japheth had less than the total of the three other boys
= 49 u - 21 u
= 28 u
= 28 x 30
= $840
Answer(s): $840