PSLE Rael was given a fixed amount of allowance each month. In July, he spent $230 and saved the rest. In August, he spent 20% less and his savings increased by 40%. How much was Rael's allowance for each month?
|
Spending (%) |
Savings (u) |
Before
|
100% $230 |
100 u
|
Change |
- 20% |
+ 40 u |
After |
80% |
140 u |
100% of spending = 230
1% of spending = 230 ÷ 100 = 2.3
20% of spending = 20% x 230 = 46
20% of spending = 40 u of savings
40 u of savings = 46
1 u of savings = 46 ÷ 40 = 1.15
100 u of savings = 100 x 1.15 = 115
Rael's allowance for each month
= 100% of spending + 100 u of savings
= 230 + 115
= $345
Answer(s): $345