Zane saves 40% of his income. When his income was decreased by 20%, his savings decreased proportionately to $128. What was his original income?
| |
Savings |
Spending |
Total |
| Before |
40% |
60% |
100% |
| Change |
- 8% |
- 12% |
- 20% |
| After |
32% |
48% |
80% |
New income after it was decreased by 20%
= 100% - 20%
= 80%
Decrease in savings
= 20% x 40%
=
20100 x 40%
= 8%
New savings in percentage
= 40% - 8%
= 32%
32% of the original income = 128
1% of the original income = 128 ÷ 32 = 4
100% of the original income = 10 x 4 = 400
Zane's original income = $400
Answer(s): $400
