Pierre saved $840 and spent the rest of his money. If he increased his savings by 40%, his spending would decrease by 28%. How much money did Pierre have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$840 |
100u |
| Change |
+ 40% |
- 28u |
| After |
140% |
72u |
Increase in savings = Decrease in spending
40% savings =
28u spending 100% savings = 840
1% savings = 840 ÷ 100 = 8.4
40% savings = 40 x 8.4 = 336
28 u spending = 3361 u spending = 336 ÷ 28 = 12100 u spending = 100 x 12 = 1200 Amount that Pierre had
= 840 + 1200
= $2040
Answer(s): $2040
