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Ex. Production of steel by six different companies in three cosecutive years 1994-95-96( In Lakh Tonnes ) are being given  Q(1) What is the difference between average production of the six companies in 1995 and average production of the same companies in 1994 ? Solution : Sum of production in 1995= 55+55+40+70+70+45=335 Sum of production in 1994=50+45+30+50+70+35=280  Difference=916666 tonnes. Q(2) What is the % decline in production by company C from 1995 to 1996 ? Solution :For company c production in 1995= 40 and in 1996=35  Q(3) Which of the following companies recorded the minimum % growth from 1994 to 1995 ? (a) A (b) B (c) C (d) D (e) F Solution :On seeing graph it is clear that company E has recorded minimum growth from 1994 to 1995 Q(4) Production of company ' C ' in 1995 and production of company ' F ' in 1994 together is what % of production of B in 1996 ? Solution : Production of C in 1995 = 40 , Production of F in 1994 = 35 Sum = 75, production of B in 1996 = 60  Q(5) In which of the following pairs of companies the difference between average production for the three years is maximum ? (a) E and F (b) D and F (c) E and C (d) A and E (e) None of these Solution : From the graph we can see that highest production average is for company E and Lowest production average is for company C, so difference between average production for the three years is maximum for company E and C, So, option (c) is correct Ex. Toatal sale of English and Hindi Newspapers in Five different Localities of a city are given. ( Note : Do not get confused by axis of data, it is shown in cylendrical way, so value is same as shown in y axis )  Q(1) What is the difference between the total sale of english Newspapers and total sale of Hindi newspapers in all the localities together ? (a) 6000 (b) 6500 (c) 70000 (4)7500 (5) None of these Solution : Total Sum of all the English News papers = 7500 + 9000 + 9500 + 7000 + 6500 = 39500 Total Sum of all the Hindi News papers = 5500 + 8500 + 4500 + 9500 + 5000 = 33000 Difference = 39500 - 33000 = 6500, so option (b) is correct Q(2) The sale of English News paper in locality A is approximatley what % of the total sale of english newspapers in all the localities together ? (a) 527 (b) 25 (c) 111 (4)236 (5) 19 Solution : Total sum of sale of english newspapers in all the localities together = 39500 as calculated above Sale of English News paper in locality A = 7500 ( from fig. above )  So option (5) is correct. Q(3) What is the respective ratio of the sale of Hindi Newspapers in locality A to the sale of Hindi Newspapers in locality D (a) 11 : 19 (b) 6 : 5 (c) 5 : 6 (4)19 : 11 (5) None of these Solution :sale of Hindi Newspapers in locality A=5500 sale of Hindi Newspapers in locality D=9500  So, option (a) is correct Q(4) The sale of English Newspaper in localities B and D together is approximately what % of the sale English Newspaper in localities A, C and E together ? (a) 162 (b) 84 (c) 68 (4)121 (5) 147 Solution : Sum of the sale of English Newspaper in localities B and D together = 9000 + 7000 = 16000 Sum of the sale of English Newspaper in localities A, C and E together = 7500 + 9500 + 6500 = 23500  So, option (c) is correct Q(5) What is the average sale of hindi news papers in all the localities together ? (a) 6600 (b) 8250 (c) 5500 (4)4715 (5) None of these Solution : Sum of the sale of Hindi Newspapers in all localities = 33000 as calculated in Q(1)  So, option (a) correct |
Monday, August 22, 2016
Bar Graphs
Bar Graphs
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