PSLE Julian was given a fixed amount of allowance each month. In July, he saved $310 and spent the rest. In August, he saved 40% more and his spending decreased by 10%. How much was Julian's allowance for each month?
|
Savings (%) |
Spending (u) |
Before |
100% $$(n80 |
100 u |
Change |
+ 40% |
- 10 u |
After |
140% |
90 u |
100% of savings = 310
1% of savings = 310 ÷ 100 = 3.1
40% of savings = 40% x 310 = 124
40% of savings = 10 u of spending
10 u of spending = 124
1 u of spending = 124 ÷ 10 = 12.4
100 u of spending = 100 x 12.4 = 1240
Julian's allowance for each month
= 100% of savings + 100 u of spending
= 310 + 1240
= $1550
Answer(s): $1550