# Difficult Bar Charts Solved QuestionData Interpretation Discussion

Common Information

Ten students of an engineering college either liked (LIK) or did not like (DNL) a movie each one of them watched in December 2008.

The movies watched by these ten students in December 2008 are $P, Q, R, S, T, U, V$ and $W$.

The given bar graph provides details about the number of movies not liked by each of these ten students.

The following bar chart provides details about the number of students (out of the 10 given students) who liked the movies $P, Q, R, S, T, U$ and $V$.

 Q. Common Information Question: 4/4 Out of the given eight movies, how many movies are not liked by Richa but are liked by Nitin?
 ✖ A. Four ✖ B. Three ✖ C. Two ✔ D. One ✖ E. Cannot be determined

Solution:
Option(D) is correct

Consider the table shown below

Table below can be scrolled horizontally

Number of movies NOT Liked Number of movies Liked

Shefali

6

2

Shreyas

3

5

Nitin

4

4

Richa

5

3

Devendra

7

1

Pankaj

0

8

Abhishek

2

6

Ashraf

1

7

Priyanka

4

4

Amit

5

3

Total

37

43

Since, every student liked the movie $P$ and Devendra liked only one movie, therefore Devendra definitely liked $P$.

Nine students liked the movie $Q$ and hence everyone except Devendra liked the movie $P$.

Shefali liked only 2 movies and they have to be $P$ and $Q$.

Hence, every student except both Devendra and Shefali liked the movie $V$.

Following similar logic, we can get the list of the students who did not like each of the given eight movies.

The following is the list of all the students who did not like each of the given eight movies:

P  -  0
Q  -  1 – Devendra
V  -  2 – Devendra and Shefali
R  -  9 – Devendra, Shefali, Amit, Richa, Nitin, Priyanka, Shreyas, Ashraf, Abhishek
S  -  6 – Devendra, Shefali, Amit, Richa, Nitin, Priyanka
T  -  4 – Devendra, Shefali, Amit, Richa
U  -  7 – Devendra, Shefali, Amit, Richa, Nitin, Priyanka, Shreyas
W  -  8 – Devendra, Shefali, Amit, Richa, Nitin, Priyanka, Shreyas, Abhishek

Out of the given eight movies, there is only one movie, i.e. $T$, which is not liked by Richa but is liked by Nitin.