Cole saved $210 and spent the rest of his money. If he decreased his savings by 15%, his spending would increase by 21%. How much money did Cole have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$210 |
100u |
| Change |
- 15% |
+ 21u |
| After |
85% |
121u |
Increase in savings = Decrease in spending
15% savings =
21u spending 100% savings = 210
1% savings = 210 ÷ 100 = 2.1
15% savings = 15 x 2.1 = 31.5
21u spending = 31.51u spending = 31.5 ÷ 21 = 1.5100u spending = 100 x 1.5 = 150 Amount that Cole had
= 210 + 150
= $360
Answer(s): $360
