PSLE Reggie was given a fixed amount of allowance each month. In July, he saved $460 and spent the rest. In August, he saved 20% less and his spending increased by 40%. How much was Reggie's allowance for each month?
|
Savings (%) |
Spending (u) |
Before
|
100% $460 |
100 u
|
Change |
- 20% |
+ 40 u |
After |
80% |
140 u |
100% of savings = 460
1% of savings = 460 ÷ 100 = 4.6
20% of savings = 20% x 460 = 92
20% of savings = 40 u of spending
40 u of spending = 92
1 u of spending = 92 ÷ 40 = 2.3
100 u of spending = 100 x 2.3 = 230
Reggie's allowance for each month
= 100% of savings + 100 u of spending
= 460 + 230
= $690
Answer(s): $690