Pierre spent $480 and saved the rest of his money. If he increased his spending by 40%, his savings would decrease by 30%. How much money did Pierre have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$480 |
100u |
| Change |
+ 40% |
- 30u |
| After |
140% |
70u |
Increase in spending = Decrease in savings
40% spending =
30u savings 100% spending = 480
1% spending = 480 ÷ 100 = 4.8
40% spending = 40 x 4.8 = 192
30 u savings = 1921 u savings = 192 ÷ 30 = 6.4100 u savings = 100 x 6.4 = 640 Amount that Pierre had
= 480 + 640
= $1120
Answer(s): $1120
