Question :
The profit percentage on three articles A, B and C is 10%, 20%, and 25% and the ratio of the cost price is 1: 2: 4. Also the ratio of number of articles sold of A, B and C is 2: 5: 2, then overall profit percentage is:
1. 18.5
2. 21%
3. 23%
4. 27%
Answer :
2 - 21%
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