Introduction to Data Interpretation
Direction: Given here is a multiple bar diagram depicting the changes in the students strength of a college in four faculties from 1990 – 91 to 1992 – 93. Study the diagram and answer the questions.
 In which faculty was there a regular decrease in students’ strength?

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From the given bar diagram , we see
In Arts faculty, there was a regular decrease in students’ strength as it was 600 in 1990 91, 550 in 199192 and 500 in 199293.Correct Option: A
From the given bar diagram , we see
In Arts faculty, there was a regular decrease in students’ strength as it was 600 in 1990 91, 550 in 199192 and 500 in 199293.
Hence , correct answer is option A.
Direction: The following graph gives Sales, Expense and Capital of a company for a period of five years 1994 to 1998. Read the graph and answer the following questions.
 In which year was the ratio of sales to capital the lowest?

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On the basis of given graph in question ,
Sales in year 1994 = 400
Capital in year 1994 = 200
Sales : capital in 1994 → 2 : 1,
Sales in year 1995 = 500
Capital in year 1995 = 200
Sales : capital in 1995 → 5 : 2,
Sales in year 1996 = 300
Capital in year 1996 = 200
Sales : capital in 1996 → 3 : 2,
Sales in year 1997 = 500
Capital in year 1997 = 300
Sales : capital in 1997 → 5 : 3,
Sales in year 1998 = 800
Capital in year 1998 = 300
Sales : capital in 1998 → 8 : 3Correct Option: C
On the basis of given graph in question ,
Sales in year 1994 = 400
Capital in year 1994 = 200
Sales : capital in 1994 → 2 : 1,
Sales in year 1995 = 500
Capital in year 1995 = 200
Sales : capital in 1995 → 5 : 2,
Sales in year 1996 = 300
Capital in year 1996 = 200
Sales : capital in 1996 → 3 : 2,
Sales in year 1997 = 500
Capital in year 1997 = 300
Sales : capital in 1997 → 5 : 3,
Sales in year 1998 = 800
Capital in year 1998 = 300
Sales : capital in 1998 → 8 : 3
Hence , the ratio of sales to capital is the lowest in year 1996 .
 In which year was the ratio of profit to capital the highest?

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From the given bar diagram , we see
Profit in 1994 → 100,
Profit in 1995 → 100,
Profit in 1996 → – 100
Profit in 1997 → – 100,
Profit in 1998 →100Correct Option: B
From the given bar diagram , we see
Profit in 1994 → 100,
Profit in 1995 → 100,
Profit in 1996 → – 100
Profit in 1997 → – 100,
Profit in 1998 →100
Therefore , the ratio of profit to capital is the highest in year 1995 .
 What was the average per annum increase in sales (in $ million) from 1994 to 1998?

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According to given bar graph , we have
Total increase in sales from 1994 to 1998 = 100  200 + 200 + 300 = 400
Number of years = 5Required average = Total increase in sales from 1994 to 1998 Number of years
Correct Option: C
According to given bar graph , we have
Total increase in sales from 1994 to 1998 = 100  200 + 200 + 300 = 400
Number of years = 5Required average = Total increase in sales from 1994 to 1998 Number of years Required average = 100  200 + 200 + 300 = $ 80 billion 5
 In which year was the Sales to Expense ratio the lowest?

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On the basis of given graph in question ,
The Sales in year 1996 = 300
The Expense in year 1996 = 400
Required ratio = The Sales in year 1996 : The Expense in year 1996Correct Option: B
On the basis of given graph in question ,
The Sales in year 1996 = 300
The Expense in year 1996 = 400
Required ratio = The Sales in year 1996 : The Expense in year 1996
Required ratio = 300 : 400 = 3 : 4
It was lowest in 1996 as 3 : 4.