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
Find the average of books sold through offline mode (in thousand) from years 2010 to 2014.
Options:
A) 432900
B) 29340T
C) 349200
D) 543210
E) None of the above
Show Answer
Answer:
Correct Answer: C
Solution:
- Total books sold through offline mode in 2010
$ =690\times \frac{60}{100}=414 $
Total books sold through offline mode in 2011
$ =720\times \frac{42.5}{100}=306 $
Total books sold through offline mode in 212
$ =950\times \frac{40}{100}=380 $
Total books sold through offline mode in 2013
$ =1240\times \frac{25}{100}=310 $
Total books sold through offline mode in 2014
$ =1600\times \frac{21}{100}=336 $
Average number of book sold through offline mode 2010 to 2014
$ =\frac{414+306+380+310+336}{5} $ $ =\frac{1746}{5}=349.2\times 1000=349200 $
BETA
