Mark spent $660 and saved the rest of his money. If he decreased his spending by 20%, his savings would increase by 11%. How much money did Mark have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$660 |
100u |
| Change |
- 20% |
+ 11u |
| After |
80% |
111u |
Increase in spending = Decrease in savings
20% spending =
11u savings 100% spending = 660
1% spending = 660 ÷ 100 = 6.6
20% spending = 20 x 6.6 = 132
11u savings = 1321u savings = 132 ÷ 11 = 12100u savings = 100 x 12 = 1200 Amount that Mark had
= 660 + 1200
= $1860
Answer(s): $1860
