Ian spent $220 and saved the rest of his money. If he increased his spending by 10%, his savings would decrease by 11%. How much money did Ian have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$220 |
100u |
| Change |
+ 10% |
- 11u |
| After |
110% |
89u |
Increase in spending = Decrease in savings
10% spending =
11u savings 100% spending = 220
1% spending = 220 ÷ 100 = 2.2
10% spending = 10 x 2.2 = 22
11 u savings = 221 u savings = 22 ÷ 11 = 2100 u savings = 100 x 2 = 200 Amount that Ian had
= 220 + 200
= $420
Answer(s): $420
