Xavier and Owen were given some allowances each. If Xavier spent $26 each day and Owen spent $52 each day, Xavier would still have $1115 left when Owen spent all his allowance. If Xavier spent $52 each day and Owen spent $26 each day, Xavier would still have $23 left when Owen spent all his allowance.
- How much allowance did Xavier receive?
- How much allowance did Owen receive?
|
Case 1 |
Case 2 |
|
Xavier |
Owen |
Xavier |
Owen |
Before |
1 u + 1115 |
2 u |
2 p + 23 |
1 p |
Change |
- 1 u |
- 2 u |
- 2 p |
- 1 p |
After |
1115 |
0 |
23 |
0 |
(a)
Simplify the ratio.
26 : 52 = 1 : 2
The allowance that Owen had at first is the same for Case 1 and Case 2.
1 p = 2 u
2 p = 4 u
The allowance that Xavier had at first is the same for Case 1 and Case 2.
4 u + 23 = 1 u + 1115
4 u - 1 u = 1115 - 23
3 u = 1092
1 u = 1092 ÷ 3 = 364
Allowance that Xavier received
= 1 u + 1115
= 364 + 1115
= $1479
(b)
Allowance that Owen received
= 2 u
= 2 x 364
= $728
Answers: (a) $1479; (b) $728