Ethan spent $230 and saved the rest of his money. If he increased his spending by 30%, his savings would decrease by 15%. How much money did Ethan have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$230 |
100u |
| Change |
+ 30% |
- 15u |
| After |
130% |
85u |
Increase in spending = Decrease in savings
30% spending =
15u savings 100% spending = 230
1% spending = 230 ÷ 100 = 2.3
30% spending = 30 x 2.3 = 69
15 u savings = 691 u savings = 69 ÷ 15 = 4.6100 u savings = 100 x 4.6 = 460 Amount that Ethan had
= 230 + 460
= $690
Answer(s): $690
