Tommy spent $850 and saved the rest of his money. If he increased his spending by 30%, his savings would decrease by 20%. How much money did Tommy have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$850 |
100u |
| Change |
+ 30% |
- 20u |
| After |
130% |
80u |
Increase in spending = Decrease in savings
30% spending =
20u savings 100% spending = 850
1% spending = 850 ÷ 100 = 8.5
30% spending = 30 x 8.5 = 255
20 u savings = 2551 u savings = 255 ÷ 20 = 12.75100 u savings = 100 x 12.75 = 1275 Amount that Tommy had
= 850 + 1275
= $2125
Answer(s): $2125
