Barbara gave 14% of her collection of coins to Hazel thereby increasing Hazel's collection by 28%. If Barbara had 43 coins left, how many coins did Hazel have at first?
| |
Barbara's coins |
Hazel's coins |
| Before |
100% |
100 u |
| Change |
- 14% |
+ 14% = + 28 u |
| After |
86% |
128 u |
86% of Barbara's collection = 43
1% of Barbara's collection = 43 ÷ 86 = 0.5
14% of Barbara's collection = 14 x 0.5 = 7
28 u of Hazel's collection = 7
1 u of Hazel's collection =
725 = 0.25
100 u of Hazel's collection = 100 x 0.25 = 25
Answer(s): 25
