Directions:  Study the graph carefully to answer the questions that follow.

Number of employees (in thousand) working in three different companies over six different years

Important for :
1
The total number of employees in Company A over the years together was approximately what percent of the total number of employees in Company C in the year 2007 and 2008 together?
» Explain it
D
Total number of employees in Company A over all the years together = 15 + 30 + 45 + 25 + 50 + 45 = 210

Total number of employees in Company C in the year 2007 and 2008 = (50 + 40) = 90

Reqd %

 = 210 × 100 90

= 233.3% ≈ 233%

Hence, option D is correct.

2
What was the percentage decrease in the number of employees in Company B in the year 2008 in comparison to the previous year?
» Explain it
C
Number of employees in Company B in the year 2008 = 35

Number of employees in Company B in the year 2007 = 40

∴   % decrease

 = (40 – 35) × 100 40

= 12.5%

Hence, option C is correct.

3
What was the ratio of the number of employees in Company B in the year 2005 to the number of the employees in Company C in the year 2007?
» Explain it
B
Number of employees in Company B in the year 2005 = 20

Number of employees in Company C in the year 2007 = 50

∴     Reqd. ratio = 20 : 50 = 2 : 5.

Hence, option B is correct.

4
If 30 per cent of the total number of employees in the year 2006 in all the companies together were females, what was the total number of male employees that year in all the companies together?
» Explain it
D
Total number of employees in 2006 in all the comapnies together = 30 + 15 + 25 = 70k

Number of female employees

 = 70k × 30k 100

= 21k

∴    Number of male employees = (70k – 21k) = 49000.

Hence, option D is correct.

5
What is the ratio of the total employees in all three companies in 2007 to that in 2009?
» Explain it
A
Total number of employees in Company A, B and C in 2007 = 45 + 40 + 50 = 135

Total number of employees in Company A, B and C in 2009 = 50 + 40 + 30 = 120

Reqd. ratio = 135 : 120 = 9 : 8.

Hence, option A is correct.

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