PSLE Linda saved $950 in May. This amount was a 5% decrease from what she saved in April. The amount she saved in June was a 40% increase from what she saved in May.
- What was the total amount that Linda saved from April to June?
- What was the percentage increase in the amount Linda saved in June compared to April?
|
Savings |
April |
100% |
|
Change |
- 5% |
|
May |
95% |
100 u |
Change |
|
+ 40 u |
June |
|
140 u |
(a)
Savings in April = 100%
Savings in May = 100% - 5% = 95%
95% = 950
1% = 950 ÷ 95 = 10
Savings in April
= 100%
= 100 x 10
= $1000
Savings in May = 100 u
Savings in June = 100 u + 40 u = 140 u
100 u = 950
1 u = 950 ÷ 100 = 9.5
Savings in June
= 140 u
= 140 x 9.5
= $1330
Total savings from April to June
= 1000 + 950 + 1330
= $3280
(b)
Increase in savings in June compared to April
= 1330 - 1000
= $330
Percentage increase
=
Increase in savingsSavings in April x 100%
=
3301000 x 100%
= 33%
Answer(s): (a) $3280; (b) 33%