Question

What is the respective ratio of the total number of books purchased for libraries A and B together in 2003 to the total number of books purchased for the same libraries together in 2007?

• A. 23:31
• B. 22:31
• C. 11:17
• D. 11:19
• E. 22:35

Answer 1

The correct option is B 22:31

Total number of books purchased for libraries A and B together in 2003
=640+240=880
Total number of books purchased for libraries A and B together in 2007
=760+480=1240
$\therefore$ Required ratio $=\frac{880}{1240}=\frac{22}{31}$ or 22:31