If Adam's income increases 50% from $900 and then falls by 10%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$900 |
| Change 1 |
+ 50% |
|
|
| After 1 |
150% |
100 u |
$1350 |
| Change 2 |
|
- 10 u |
|
| After 2 |
|
90 u |
$1215 |
100% of Adam's original income = $900
1% of Adam's original income
= 900 ÷ 100
= $9
100% + 50% = 150%
150% of Adam's original income
= 150 x 9
= $1350
150% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 1350
1 u of Adam's new income
= 1350 ÷ 100
= $13.50
100 u - 10 u = 90 u
90 u of Adam's new income
= 90 x 13.50
= $1215
Adam's latest income = $1215
Answer(s): $1215
