Dear readers,

The quiz on data interpretation, provided here, will help you prepare for the upcoming exams. Please try to give answers in the comment box; soon we will publish the correct answers.

Directions (1-5): In the following bar diagram the number of
engineers employed in various companies has been given. Study the bar diagram
carefully to answer the questions.

1. The number of post graduate engineers employed in the company W is what per cent of the total engineers employed in that company?

(1) 33 1/3%

(2) 30 1/3%

(3) 25 1/3%

(4) 36 1/3%

(5) None of these

2. What is the average number of junior
engineers employed in all the companies?

(1) 150

(2) 170

(3) 160

(4) 180

(5) 190

3. What is the difference between the average
number of junior engineers and assistant engineers taking all the companies
together?

(1) 18

(2) 15

(3) 10

(4) 22

(5) 25

4. If the number of assistant engineers employed
in all the companies be increased by 37% and the number of post graduate
engineers employed in all the companies be decreased by 20%, so by what percent
will number of assistant engineers be less than that of post graduate
engineers?

(1) 5.6%

(2) 7.8%

(3) 8%

(4) 9.3%

(5) None of these

5. If the number of all the engineers in the company
V, company X and company Y be increased by 30%, 35% and 40% respectively, what
will be the overall percentage increase in the number of all engineers of all
the companies taken together?

(1) 20%

(2) 22%

(3) 24%

(4) 25%

(5) None of these

6. What is the ratio between number of assistant
engineers employed in company V and company X?

(1) 3 : 5

(2) 3 : 4

(3) 2 : 3

(4) 3 : 2

(5) None of these