The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
What is the difference between the production of Company Z in 1998 and Company Y in 1996?
200,000 tons
2,000,000 tons
20,000 tons
20,000,000 tons
Correct answer is B
Lakh tonne = 100,000
Therefore required difference = [(45 - 25) x 100,000] tons = 2,000,000 tons.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
What is the percentage increase in the production of Company Y from 1996 to 1999?
30%
45%
50%
60%
Correct answer is D
Percentage increase in the production of Company Y from 1996 to 1999
= [ (40 - 25)/25 x 100 ] %
= [ 15/25 x 100 ] %
= 60%.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
1996
1997
1998
1999
Correct answer is A
The percentages of production of Company Z to the production of Company Z for various years are:
For 1996 = ( 35/25 x 100 ) % = 140%
For 1997 = ( 40/35 x 100 ) % = 114.29%
For 1998 = ( 45/35 x 100 ) % = 128.57%
For 1999 = ( 35/35 x 100 ) % = 87.5%
For 2000 = ( 35/35 x 100 ) % = 70%
Clearly, this percentage is highest for 1996.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
The average production for five years was maximum for which company?
X
Y
Z
both X and Z
Correct answer is D
Average production (in lakh tons) in five years for the three companies are:
For Company X = [ 1/5 x (30 + 45 + 25 + 50 + 40) ] = 190/5 = 38
For Company Y = [ 1/5 x (25 + 35 + 35 + 40 + 50) ] = 185/5 = 37
For Company Z = [ 1/5 x (35 + 40 + 45 + 35 + 35) ] = 190/5 = 38
Therefore Average production of five years is maximum for both the Companies X and Z.
The bar graph given below shows the data of the production of paper (in lakh tonnes) by three different companies X, Y and Z over the years.
Production of Paper (in lakh tonnes) by Three Companies X, Y and Z over the Years.
1:1
15:17
23:25
27:29
Correct answer is C
Average production of Company X in the period 1998-2000
= [ 1/3 x (25 + 50 + 40) ] = ( 115/3 ) lakh tons
Average production of Company Y in the period 1998-2000
= [ 1/3 x (35 + 40 + 50) ] = ( 125/3 ) lakh tons
Therefore Required ratio = (115/3)/(125/3) = 115/125 = 23/25
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