If Adam's income decreases 40% from $600 and then increases by 40%, what is Adam's latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$600 |
| Change 1 |
- 40% |
|
|
| After 1 |
60% |
100 u |
$360 |
| Change 2 |
|
+ 40 u |
|
| After 2 |
|
140 u |
$504 |
100% of Adam's original income = $600
1% of Adam's original income = 600 ÷ 100 = $6
100% - 40% = 60%
60% of Adam's original income = 60 x 6 = $360
100 u of Adam's new income = $360
1 u of Adam's new income = 360 ÷ 100 = $3.60
100 u + 40 u = 140 u
140% of Adam's new income = 140 x 3.60 = $504
Adam's latest income = $504
Answer(s): $504
