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Find the number of post-graduate female employees in state B :

  • A.8,000
  • B.15,000
  • C.350
  • D.7,000

Answer: D

State B has 7,000 post-graduate female employees.

State B has 30,000 employees in the ratio 8 : 7, so females are 7 parts out of 15, and 50 percent of employees are post-graduates. Applying that percentage to the female employees:

\[ \begin{aligned} \text{females} &= \tfrac{7}{15} \times 30000 = 14000 \\ \text{PG females} &= 50\% \times 14000 = 7000 \end{aligned} \]

15,000 is the number of all post-graduates in state B, 8,000 is half the male employees (16,000), and 350 is a decimal slip.

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