Adam spends $700 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 = $700
1% of Adam's spending = 700 ÷ 100 = $7
35% of Adam's spending = 35 x 7 = $245
5 u of Adam's savings = $245
1 u of Adam's savings = 245 ÷ 5 = $49
100 u of Adam's savings = 100 x 49 = $4900
Amount of Adam's savings at first
= 100 u
= $4900
(b)
Amount of savings in the end
= 95 u
= 95 x 49
= $4655
(c)
Adam's income
= 100% + 100 u
= 700 + 4900
= $5600
Answer(s): (a) $4900; (b) $4655; (c) $5600