Question: Directions: Study the table to answer the given questions.
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 difference between the number of fiction books sold in the years 2012 and 2013 together and the number of the non-fiction books sold in the years 2011 and 2012 together?
Options:
A) 873
B) 876
C) 573
D) 673
E) 676
Show Answer
Answer:
Correct Answer: D
Solution:
- Number of books sold in the year 2012
$ =945\times \frac{8}{15}=504 $
Number of books sold in the year 2013
$ =1240\times \frac{3}{4}=310\times 3=930 $
Total number of fiction books sold in the years 2012 and 2013 $ =504+930=1434 $
Number of non-fiction books sold in the year 2011 $ =720\times \frac{4}{9}=320 $
Number of non-fiction books sold in the year 2012
$ =945\times \frac{7}{15}=63\times 7=441 $
Total number of non-fiction books sold in the years
2011 and 2012 together $ =320+441=761 $
$ \therefore $ Required difference $ =1434-761=673 $
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