If Adam's income increases 40% from $1700 and then falls by 10%, what is his latest income?
| |
Original Income (%) |
New income (u) |
Income ($) |
| Before 1 |
100% |
|
$1700 |
| Change 1 |
+ 40% |
|
|
| After 1 |
140% |
100 u |
$2380 |
| Change 2 |
|
- 10 u |
|
| After 2 |
|
90 u |
$2142 |
100% of Adam's original income = $1700
1% of Adam's original income
= 1700 ÷ 100
= $17
100% + 40% = 140%
140% of Adam's original income
= 140 x 17
= $2380
140% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = 2380
1 u of Adam's new income
= 2380 ÷ 100
= $23.80
100 u - 10 u = 90 u
90 u of Adam's new income
= 90 x 23.80
= $2142
Adam's latest income = $2142
Answer(s): $2142
