The number of plain books sold by store A and store B was 30% and 40% respectively. If store A sold 20% of its total books and store B sold 40% of its...
Question
The number of plain books sold by store A and store B was 30% and 40% respectively. If store A sold 20% of its total books and store B sold 40% of its total books, find the percentage of lined books sold by both stores together with respect to the total books available at store A.
Options
A. 
B. 
C. 
D. 