Flynn and Seth were given some allowances each. If Flynn spent $14 each day and Seth spent $28 each day, Flynn would still have $1242 left when Seth spent all his allowance. If Flynn spent $28 each day and Seth spent $14 each day, Flynn would still have $66 left when Seth spent all his allowance.
- How much allowance did Flynn receive?
- How much allowance did Seth receive?
|
Case 1 |
Case 2 |
|
Flynn |
Seth |
Flynn |
Seth |
Before |
1 u + 1242 |
2 u |
2 p + 66 |
1 p |
Change |
- 1 u |
- 2 u |
- 2 p |
- 1 p |
After |
1242 |
0 |
66 |
0 |
(a)
Simplify the ratio.
14 : 28 = 1 : 2
The allowance that Seth had at first is the same for Case 1 and Case 2.
1 p = 2 u
2 p = 4 u
The allowance that Flynn had at first is the same for Case 1 and Case 2.
4 u + 66 = 1 u + 1242
4 u - 1 u = 1242 - 66
3 u = 1176
1 u = 1176 ÷ 3 = 392
Allowance that Flynn received
= 1 u + 1242
= 392 + 1242
= $1634
(b)
Allowance that Seth received
= 2 u
= 2 x 392
= $784
Answers: (a) $1634; (b) $784