PSLERoshel had a collection of stamps from Pakistan, Turkey and Sweden. She had 151 stamps from Pakistan. 40% of her stamps were from Turkey. She had 11 fewer stamps from Sweden than from Turkey.
- What was the total number of stamps in Roshel's collection?
- Roshel's aunt gave her some stamps from Turkey. Her total collection increased by 25%. What percentage of her collection was from Turkey after that?
(a)
Pakistan |
Turkey |
Sweden |
Total |
151 |
40% |
40% - 11 |
100% |
|
+ 25% |
|
+ 25% |
|
65% |
|
125% |
Total number of stamps
= 40% + 40% - 11 + 151
= 80% + 140
100% = 80% + 140
100% - 80% = 140
20% = 140
1% = 140 ÷ 20 = 7
Total number of stamps in Roshel's collection
= 100%
= 100 x 7
= 700
(b)
Old stamp collection = 100%
New stamp collection = 100% + 25% = 125%
Percentage of stamps from Turkey
= 40% + 25%
= 65%
Percentage of her collection from Turkey
=
65125 x 100%
= 52%
Answer(s): (a) 700; (b) 52%