Data Interpretation

Direction (1-5): Study the following table carefully and answer the questions given below it.Number of students enrolled with five colleges over the years

 

1.    If from college B in 2007, 90% of the students enrolled appeared in a competitive examination, out of which 75% students passed, how many students passed the examination?(1)180                    (2) 216                         (3) 270(4) 243                   (5) None of these

2.    In 2005, from all the colleges together an overall 40% of the students enrolled for a computer course. Total how many students enrolled for the course?(1) 800                   (2) 850                         (3) 950(4) 900                   (5) None of these

3.    What is the ratio between the average number of people enrolled with all colleges together in 2007 and 2008 respectively?(1)108:113             (2)108:117                   (3)110:113(4)111:113             (5) None of these

4.    Average number of students enrolled from college B for all the years together is approximately what per cent of the average number of students enrolled from college C for all the years together?(1) 73                     (2)120              (3)128(4) 70                     (5) 83

5.    In 2006, from all colleges together 8% of the students enrolled went abroad. Approximately how many students went abroad?(1)169                    (2) 210             (3) 220(4)190                    (5)150

Direction (6-10): Study the following graph carefully and answer the questions given below it.Total Sale of English and Hindi Newspapers in Five Different Localities of a City

6.    What is the difference between the total sale of English Newspapers and the total sale of   Hindi Newspapers in all the localities together?     (1) 6000                 (2) 6500                       (3) 7000     (4) 7500                 (5) None of these

7.    The sale of English Newspapers in Locality A is approximately what per cent of the total sale of English Newspapers in all the localities together?(1) 27                     (2) 25                           (3) 11(4) 36                     (5) 19

8.    What is the ratio of the sale of Hindi Newspapers in Locality A to the sale of Hindi Newspapers in Locality D?(1) 11:19                (2) 6:5                          (3) 5:6(4) 19:11                (5) None of these

9.    The sale of English Newspapers in Localities B and D together is approximately what per cent of the sale of English Newspapers in localities A, C and E together?(1)162                    (2) 84                           (3) 68(4)121                    (5)147

10.  What is the average sale of Hindi Newspapers in all the localities together?(1) 6600                 (2) 8250                       (3) 5500(4) 4715                 (5) None of these

ANSWERS WITH EXPLANATION:

1.     (4)Number of students appeared in exam from college B in 2007 = (360*90)/100 = 324∴ Number of students passed = (324*75)/100 = 243

2.    (4)Number of students appeared in exam from all colleges = 40% of (480+350+380+500+540)= (40*2250)/100 = 900

3.    (3)Reqd. ratio = (460+360+430+470+480) : (470+340+390+530+530)=2200:2260=110:113

4.    (5)∴Reqd. percentage = (334/402)*100 = 83.08% ≈ 83%

5.    (1)Number of students in all colleges in 2006 = 420+300+410+520+460=2110∴Number of students who went abroad = (2110*8)/100 = 168.8 ≈ 169

6.    (2)Difference = 39500-33000=6500

7.    (5)Percentage = (7500/39500)*100  ≈19%

8.    (1)Ratio is 55:95= 11:19

9.    (3)Percentage = (16000/23500)*100 ≈ 68%

10.  (1)

33000/5 = 6600