PSLE Liam was given a fixed amount of allowance each month. In May, he saved $490 and spent the rest. In June, he saved 30% more and his spending decreased by 10%. How much was Liam's allowance for each month?
|
Savings (%) |
Spending (u) |
Before |
100% $$(n80 |
100 u |
Change |
+ 30% |
- 10 u |
After |
130% |
90 u |
100% of savings = 490
1% of savings = 490 ÷ 100 = 4.9
30% of savings = 30% x 490 = 147
30% of savings = 10 u of spending
10 u of spending = 147
1 u of spending = 147 ÷ 10 = 14.7
100 u of spending = 100 x 14.7 = 1470
Liam's allowance for each month
= 100% of savings + 100 u of spending
= 490 + 1470
= $1960
Answer(s): $1960