Sam spent $420 and saved the rest of his money. If he increased his spending by 40%, his savings would decrease by 35%. How much money did Sam have?
| |
Spent (%) |
Saved (u) |
| Before |
100%
$420 |
100u |
| Change |
+ 40% |
- 35u |
| After |
140% |
65u |
Increase in spending = Decrease in savings
40% spending =
35u savings 100% spending = 420
1% spending = 420 ÷ 100 = 4.2
40% spending = 40 x 4.2 = 168
35 u savings = 1681 u savings = 168 ÷ 35 = 4.8100 u savings = 100 x 4.8 = 480 Amount that Sam had
= 420 + 480
= $900
Answer(s): $900
