Ahmad saved $180 and spent the rest of his money. If he decreased his savings by 10%, his spending would increase by 25%. How much money did Ahmad have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$180 |
100u |
| Change |
- 10% |
+ 25u |
| After |
90% |
125u |
Increase in savings = Decrease in spending
10% savings =
25u spending 100% savings = 180
1% savings = 180 ÷ 100 = 1.8
10% savings = 10 x 1.8 = 18
25u spending = 181u spending = 18 ÷ 25 = 0.72100u spending = 100 x 0.72 = 72 Amount that Ahmad had
= 180 + 72
= $252
Answer(s): $252
