26 June Sunday
CBSE UGC NET January 2017-PAPER 1

Data Interpretation

ഡോ. വി രാമലിംഗം അയ്യര്‍Updated: Monday Oct 23, 2017

solved papper continue....



The table below embodies data on the sales revenue  (`in lakh) generated by a publishing house during the years 2012-15 while selling books, magazines and journals as three categories of items. Answer questions 19 – 21 based on the data contained in the table.



Items        2012    2013    2014    2015


Journals    46    47    45    44


Magazines    31    39    46    51


Books        73    77    78    78


Total                


19). In 2015, approximately what percent of total revenue came from books ?   (1) 45%          (2) 55%             (3) 35%      (4) 25%                                                            [  78/173into100= 45.01=45% Answer is(1)]                                                                                          


20). The number of years in which there was an increase in revenue from at least two categories of items, is (1) 0  (2) 1  (3) 2   (4) 3                                                             


[In 2012in 3items,in2013in2items, and in2014in2items  thus 3times.Ans:- (4) ]                                                                     


21) If the year 2016 were to show the same growth in terms of total sales revenue as the year 2015 over the year 2014, then the revenue in the year 2016 must be approximately : (1) 194 lakh (2) 187 lakh (3) 172 lakh (4) 177 lakh                                                                                        


[In2014 total sales is 169and in2015it is 173 In2016 it would have been 173into173/169=175.9 or  43+56+78=177 ans:- (4)]                                                                                                                         



A Universtiy professor maintains data on MCA students tabulated by performance and gender of the students. The data is kept on a computer hard disk, but accidently some of it is lost because of a computer virus. Only the following could be recovered :



Gender    Average      Good     Excellent      Total


Male                   10    


Female                    32


Total               30        


 Panic buttons were pressed but to no avail. An expert committee was formed, which decided that the following facts were self evident :                                                                                         (a) Half the students were either excellent or good. (b) 40% of the students were females.    (c) One-third of the male students were average.                     


Answer questions 22-24based on the data given above :                                                             


[ Explanations:-                                                                                                   



Gender    Average      Good    Excellent        Total


Male        16       22    10        48


Female    24       8    0        32


Total        40       30    10        80



step1--40% are female, ie 60% are male ie 32into60/100=48 are male.then total students is42+38=80.                                                                                                                                        


step2--1/3of male is average=1/3 into48=16                                                                          


step3-- Half the students are either excellent or good.Then the remaining half or 40 is average.balance columns can be filled ]                                                                                        



22). How many female students are excellent ?


(1) 0   (2) 8   (3) 16    (4) 32   Answer is (1)                                                                                                                        



23). What proportion of female students are good ?                                                                          


(1) 0       (2) 0.25    (3) 0.50      (4) 0.75       Answer (2)                                                                                                                                         



24). Approximately, what proportion of good students are male ?                                              


(1) 0     (2) 0.73   (3) 0.43    (4) 0.27  [22/30   Answer (2)]                                        




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