Mark saved $1000 and spent the rest of his money. If he increased his savings by 10%, his spending would decrease by 25%. How much money did Mark have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$1000 |
100u |
| Change |
+ 10% |
- 25u |
| After |
110% |
75u |
Increase in savings = Decrease in spending
10% savings =
25u spending 100% savings = 1000
1% savings = 1000 ÷ 100 = 10
10% savings = 10 x 10 = 100
25 u spending = 1001 u spending = 100 ÷ 25 = 4100 u spending = 100 x 4 = 400 Amount that Mark had
= 1000 + 400
= $1400
Answer(s): $1400
