If Adam's income decreases 40% from $1800 and then increases by 20%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$1800 |
| Change 1 |
- 40% |
|
|
| After 1 |
60% |
100 u |
$1080 |
| Change 2 |
|
+ 20 u |
|
| After 2 |
|
120 u |
$1296 |
100% of Adam's original income = $1800
1% of Adam's original income
= 1800 ÷ 100
= $18
100% - 40% = 60%
60% of Adam's original income
= 60 x 18
= $1080
60% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 1080
1 u of Adam's new income
= 1080 ÷ 100
= $10.80
100 u + 20 u = 120 u
120 u of Adam's new income
= 120 x 10.80
= $1296
Adam's latest income = $1296
Answer(s): $1296
