Zeph saves 30% of his income. When his income was decreased by 10%, his savings decreased proportionately to $189. What was his original income?
| |
Savings |
Spending |
Total |
| Before |
30% |
70% |
100% |
| Change |
- 3% |
- 7% |
- 10% |
| After |
27% |
63% |
90% |
New income after it was decreased by 10%
= 100% - 10%
= 90%
Decrease in savings
= 10% x 30%
=
10100 x 30%
= 3%
New savings in percentage
= 30% - 3%
= 27%
27% of the original income = 189
1% of the original income = 189 ÷ 27 = 7
100% of the original income = 10 x 7 = 700
Zeph's original income = $700
Answer(s): $700
