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Data Table

Data Table - Important Points


6.

Study the Data Table-2 carefully to answer the questions that follow:

Number of girls and boys (in hundreds) in six different years in five different colleges

 

College→

 

 

 

Years↓

          A

         B

        C

       D

           E

 Boys

Girls

Boys

Girls

Boys

 Girls

Boys

 Girls

 Boys

Girls

2005

3.3

3.6

5.2

3.1

5.5

4.5

2.4

1.4

6.5

6.6

2006

6.6

4.2

4.9

2.2

6.9

3.3

4.4

2.3

5.5

3.6

2007

9.3

6.9

4.7

4.2

5.8

4.9

6.4

3.3

2.7

2.4

2008

5.4

9.6

6.3

5.4

6.6

5.2

5.3

5.4

5.4

5.7

2009

8.4

12.9

7.5

5.9

8.7

6.6

12.1

5.2

6.8

6.5

2010

12.3

14.4

9.8

4.4

11.7

4.2

12.2

9.4

10.8

12.7

 

What is the approximate percentage decrease in the number of boys in College D in the year 2008 as compared to that in the previous year?

A. 17

B. 12

C. 9

D. 5

Discuss Work Space

Answer: option a

Explanation:

Percentage decrease = [(6.4 – 5.3) / 6.4] x 100 = 17.18


7.

Study the Data Table-2 carefully to answer the question:

The number of girls in College B in the year 2009 is approximately what per cent of the total number of students (both boys and girls) in College E in the year 2006?

A. 46

B. 52

C. 70

D. 65

Discuss Work Space

Answer: option d

Explanation:

Girls in College B in 2009 = 590
Boys and girls in College E in 2006 = 550 + 360 = 910
Percentage = (590 / 910) x 100 = 64.83% (Approx)


8.

Study the Data Table-2 carefully to answer the question:

What is the average number of girls in College A in all the years taken together?

A. 760

B. 800

C. 860

D. 600

Discuss Work Space

Answer: option c

Explanation:

Average number of girls in School A over the years = (360+420+690+960+1290+1440) / 6 = 5160 / 6 = 860


9.

Study the Data Table-2 carefully to answer the question:

What is the ratio of the number of boys in College C in the year 2009 to the number of girls in College A in the year 2009?

A. 29 : 41

B. 29 : 41

C. 29 : 43

D. 36 : 13

Discuss Work Space

Answer: option c

Explanation:

Required ratio = (Boys in College C in 2009) / (Boys in College A in 2009) = 870 / 1290 = 29 / 43


10.

Study the Data Table-2 carefully to answer the question:

In which year is the total number of students (both girls and boys together) the third highest in College E?

A. 2006

B. 2007

C. 2008

D. 2005

Discuss Work Space

Answer: option d

Explanation:

Total number of students can be had from the following table:

Year

Total number of students

2005

1310

2006

910

2007

510

2008

1110

2009

1330

2010

2350



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