Adam spends $900 of his income and saves the rest.
When he increases his spending by 35%, his savings decreases by 5%
- How much is Adam's savings at first?
- How much is Adam's savings in the end?
- How much is Adam's income?
|
Spending |
Savings |
Before |
100% |
100 u |
Change |
+ 35% |
- 5 u |
After |
135% |
95 u |
(a)
35% of Adam's spending = 5% of Adam's savings
100% of Adam's spending = $900
1% of Adam's spending = 900 ÷ 100 = $9
35% of Adam's spending = 35 x 9 = $315
5 u of Adam's savings = $315
1 u of Adam's savings = 315 ÷ 5 = $63
100 u of Adam's savings = 100 x 63 = $6300
Amount of Adam's savings at first
= 100 u
= $6300
(b)
Amount of savings in the end
= 95 u
= 95 x 63
= $5985
(c)
Adam's income
= 100% + 100 u
= 900 + 6300
= $7200
Answer(s): (a) $6300; (b) $5985; (c) $7200