100+ Line Charts Data Interpretation Questions and Answers - 1
Study the following graph carefully and answer the questions that follow.
Question: 1
What was the ratio between the number of girls enrolled in School C in the year 2011 and the total number of girls enrolled in School A and School B together in the same year?
(A) 3 : 11
(B) 4 : 7
(C) 4 : 11
(D) 11 : 3
Ans: C
Required ratio = 20000 : (25000 + 30000)
= 20000 : 55000 = 20 : 55 = 4 : 11.
Question: 2
In which year was the total number of girls enrolled in all the three schools together second highest?
(A) 2008
(B) 2010
(C) 2011
(D) 2012
Ans: C
Total number of girls enrolled in all the three schools in various years (in thousands)
2008 → (20 + 15 + 10) = 45
2009 → (15 + 22.5 + 25) = 62.5
2010 → (27.5 + 15 + 20) = 62.5
2011 → (25 + 30 + 20) = 75
2012 → (30 + 25 + 27.5) = 82.5.
Clearly, it was second highest in 2011.
Question: 3
In which school was the difference between the number of girls enrolled in the year 2012 and 2008 minimum?
(A) Only School A
(B) Only School B
(C) Only School C
(D) Both School A and School B
Ans: D
Difference between the number of girls enrolled in 2012 and 2008 (in thousands) :
A → (30 – 20) = 10;
B → (25 – 15) = 10;
C → (27.5 – 10) = 17.5
So, it was minimum in both A and B.
Question: 4
What was the approximate average number of girls enrolled in the year 2010 in all the three schools together?
(A) 20000
(B) 20800
(C) 21600
(D) 22500
Ans: B
Required average = $${1}/{3}(27.5 + 15 + 20)$$ thousands
= $$({62.5} / {3} × 1000)$$ = $${62500} / {3}$$
= 20833 = 20800(approx.)
Question: 5
Total number of girls enrolled in all the three schools in the year 2008 was what percentage of the number of girls enrolled in School C in the year 2011?
(A) 165%
(B) 225%
(C) 240%
(D) 260%
Ans: B
Required percentage = $$[{(20 + 15 + 10) × 1000} / {20 × 1000} × 100]$$%
= $$[{45}/{20} × 100]$$% = 225%.
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