Tommy saves 30% of his income. When his income was decreased by 40%, his savings decreased proportionately to $144. What was his original income?
| |
Savings |
Spending |
Total |
| Before |
30% |
70% |
100% |
| Change |
- 12% |
- 28% |
- 40% |
| After |
18% |
42% |
60% |
New income after it was decreased by 40%
= 100% - 40%
= 60%
Decrease in savings
= 40% x 30%
=
40100 x 30%
= 12%
New savings in percentage
= 30% - 12%
= 18%
18% of the original income = 144
1% of the original income = 144 ÷ 18 = 8
100% of the original income = 10 x 8 = 800
Tommy's original income = $800
Answer(s): $800
