David spent $610 and saved the rest of his money. If he increased his spending by 15%, his savings would decrease by 25%. How much money did David have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$610 |
100u |
| Change |
+ 15% |
- 25u |
| After |
115% |
75u |
Increase in spending = Decrease in savings
15% spending =
25u savings 100% spending = 610
1% spending = 610 ÷ 100 = 6.1
15% spending = 15 x 6.1 = 91.5
25 u savings = 91.51 u savings = 91.5 ÷ 25 = 3.66100 u savings = 100 x 3.66 = 366 Amount that David had
= 610 + 366
= $976
Answer(s): $976
