Pierre saves 15% of his allowance. When his allowance was decreased by 40%, his savings decreased proportionately to $63. What was his original allowance?
| |
Savings |
Spending |
Total |
| Before |
15% |
85% |
100% |
| Change |
- 6% |
- 34% |
- 40% |
| After |
9% |
51% |
60% |
New allowance after it was decreased by 40%
= 100% - 40%
= 60%
Decrease in savings
= 40% x 15%
=
40100 x 15%
= 6%
New savings in percentage
= 15% - 6%
= 9%
9% of the original allowance = 63
1% of the original allowance = 63 ÷ 9 = 7
100% of the original allowance = 10 x 7 = 700
Pierre's original allowance = $700
Answer(s): $700
