If Adam's income increases 40% from $1200 and then falls by 50%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$1200 |
| Change 1 |
+ 40% |
|
|
| After 1 |
140% |
100 u |
$1680 |
| Change 2 |
|
- 50 u |
|
| After 2 |
|
50 u |
$840 |
100% of Adam's original income = $1200
1% of Adam's original income
= 1200 ÷ 100
= $12
100% + 40% = 140%
140% of Adam's original income
= 140 x 12
= $1680
140% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 1680
1 u of Adam's new income
= 1680 ÷ 100
= $16.80
100 u - 50 u = 50 u
50 u of Adam's new income
= 50 x 16.80
= $840
Adam's latest income = $840
Answer(s): $840
