PSLE Nick was given a fixed amount of allowance each month. In April, he saved $210 and spent the rest. In May, he saved 30% more and his spending decreased by 10%. How much was Nick's allowance for each month?
|
Savings (%) |
Spending (u) |
Before |
100% $$(n80 |
100 u |
Change |
+ 30% |
- 10 u |
After |
130% |
90 u |
100% of savings = 210
1% of savings = 210 ÷ 100 = 2.1
30% of savings = 30% x 210 = 63
30% of savings = 10 u of spending
10 u of spending = 63
1 u of spending = 63 ÷ 10 = 6.3
100 u of spending = 100 x 6.3 = 630
Nick's allowance for each month
= 100% of savings + 100 u of spending
= 210 + 630
= $840
Answer(s): $840