If the total number of employee in department A is 255 and total number of males below 40 years of a...........

Quantitative Aptitude ( CCS) Pie Chart

Directions : Study the following pie chart and table to answer the following questions:

If the total number of employee in department A is 255 and total number of males below 40 years of age and females above 40 years of age is 131 in department B, then find the ratio of total number of employees in dept B below 40 years and total number of employees in dept B above 40 years?

6 : 11

3 : 8

5 : 12

10 : 17

7 : 11

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Explanation:

30/100 * total people in company = 255
So total people in company= 850
And total people in department B is 20/100 * 850 = 170
Let total number of employees in dept B below 40 years is x and above 40 years is y. Then
9/10 * x + 7/10 * y = 131 or
9x + 7y = 1310
Also
x + y = 170
Solve the two equations, x = 60, y = 110
So ratio = 60 : 110 = 6 : 11