Caden and Ken were given some allowances each. If Caden spent $18 each day and Ken spent $36 each day, Caden would still have $1006 left when Ken spent all his allowance. If Caden spent $36 each day and Ken spent $18 each day, Caden would still have $34 left when Ken spent all his allowance.
- How much allowance did Caden receive?
- How much allowance did Ken receive?
|
Case 1 |
Case 2 |
|
Caden |
Ken |
Caden |
Ken |
Before |
1 u + 1006 |
2 u |
2 p + 34 |
1 p |
Change |
- 1 u |
- 2 u |
- 2 p |
- 1 p |
After |
1006 |
0 |
34 |
0 |
(a)
Simplify the ratio.
18 : 36 = 1 : 2
The allowance that Ken had at first is the same for Case 1 and Case 2.
1 p = 2 u
2 p = 4 u
The allowance that Caden had at first is the same for Case 1 and Case 2.
4 u + 34 = 1 u + 1006
4 u - 1 u = 1006 - 34
3 u = 972
1 u = 972 ÷ 3 = 324
Allowance that Caden received
= 1 u + 1006
= 324 + 1006
= $1330
(b)
Allowance that Ken received
= 2 u
= 2 x 324
= $648
Answers: (a) $1330; (b) $648