The ratio between the sale price and the cost price of an article is 7:5, what is the ratio between the profit and the cost price of that article?
2 : 7
5 : 2
None
7 : 2
SP : CP = 7 : 5
Then P = 2
Then P : CP = 2 : 5
0, 2, 8, 14, ?, 34
1, 4, 2, 8, 6, 24, 22, 88, ?
1, 4, 9, 16, 25, ?
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