Oliver spent $510 and saved the rest of his money. If he increased his spending by 20%, his savings would decrease by 25%. How much money did Oliver have?
|
Spent (%) |
Saved (u) |
Before |
100% $510 |
100u |
Change |
+ 20% |
- 25u |
After |
120% |
75u |
Increase in spending = Decrease in savings
20% spending =
25u savings 100% spending = 510
1% spending = 510 ÷ 100 = 5.1
20% spending = 20 x 5.1 = 102
25 u savings = 1021 u savings = 102 ÷ 25 = 4.08100 u savings = 100 x 4.08 = 408 Amount that Oliver had
= 510 + 408
= $918
Answer(s): $918