Data Related to Books Sold Through Online Mode and Offline Mode in a City Year Number of books sold (in thousands) (Online mode + Offline mode) Percentage of books sold through online mode Respective ratio of number of non-fiction books sold to number of fiction books sold (Online mode + Offline mode) 2010 690 40 2 : 3 2011 720 57.5 4 : 5 2012 945 60 7 : 8 2013 1240 75 1 : 3 2014 1600 79 3 : 5 What is the respective ratio of the total number of books sold through online mode in the years 2010 and 2011 together and the total number of books sold through offline mode in the same years together?
A) 25: 32
B) 24 : 25
C) 23: 24
D) 35: 36
E) 25: 28
Correct Answer: C
$ \therefore $ Respective ratio $ =690:720=23:24 $