Penelope gave 12% of her collection of marbles to Abi thereby increasing Abi's collection by 25%. If Penelope had 44 marbles left, how many marbles did Abi have at first?
|
Penelope's marbles |
Abi's marbles |
Before |
100% |
100 u |
Change |
- 12% |
+ 12% = + 25 u |
After |
88% |
125 u |
88% of Penelope's collection = 44
1% of Penelope's collection = 44 ÷ 88 = 0.5
12% of Penelope's collection = 12 x 0.5 = 6
25 u of Abi's collection = 6
1 u of Abi's collection =
624 = 0.24
100 u of Abi's collection = 100 x 0.24 = 24
Answer(s): 24