PSLE Linda spent $280 in May. This amount was a 40% increase from what she spent in April. The amount she spent in June was a 5% decrease from what she spent in May.
- What was the total amount that Linda spent from April to June?
- What was the percentage increase in the amount Linda spent in June compared to April?
|
Spending |
April |
100% |
|
Change |
+ 40% |
|
May |
140% |
100 u |
Change |
|
- 5 u |
June |
|
95 u |
(a)
Spending in April = 100%
Spending in May = 100% + 40% = 140%
140% = 280
1% = 280 ÷ 140 = 2
Spending in April
= 100%
= 100 x 2
= $200
Spending in May = 100 u
Spending in June = 100 u - 5 u = 95 u
100 u = 280
1 u = 280 ÷ 100 = 2.8
Spending in June
= 95 u
= 95 x 2.8
= $266
Total spending from April to June
= 200 + 280 + 266
= $746
(b)
Increase in spending in June compared to April
= 266 - 200
= $66
Percentage increase
=
Increase in spendingSpending in April x 100%
=
66200 x 100%
= 33%
Answer(s): (a) $746; (b) 33%