If the cost price of 12 books is equal to the selling price of 8 books, what is the gain percent?
A. 20%
B. 30%
C. 40%
D. 50%
1
D
2
B
3
A
4
C
If the cost price of 12 books is equal to the selling price of 8 books, what is the gain percent?
A. 20%
B. 30%
C. 40%
D. 50%