Read the following information carefully and answer the given questions. Some recruitment is done by three companies, i.e., P, Q and R. The number of vacancies in company P, Q, and R are 6, 12 and 2 respectively. The number of candidates, who got interview call for per vacancy in company P, Q and R are 60, 6x and 4x respectively. The total number of candidates applied in company R is 25% of the total number of candidates, applied in the company Q and three fifth of the total number of candidates applied in the company P. The difference between the number of candidates, who got interview calls in the company Q and R is 320. In company P, out of the total number of candidates who got interview call 40% are female and company P allotted its posts to male and female in the ratio of 2 : 1 respectively, then find the number of females who did not get the job in company P.
Aptitude
Ratio and Proportion
Difficulty: Medium
Choose an option
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A142
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B90
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C62
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D150
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ENone of these
Answer
Correct Answer: 142
Explanation
### Concept & Strategy
First, determine the total number of interview calls for Company P by multiplying its vacancies by the calls per vacancy. Then, apply the given percentages and ratios to separate the total pool into interviewed females and hired females.
### Step-by-Step Solution
1. Find the total number of interview calls for company P: $6 \text{ vacancies} \times 60 \text{ calls per vacancy} = 360$ total calls.
2. Calculate the number of female candidates who got an interview call: $40\%$ of $360 = 0.4 \times 360 = 144$ females.
3. Determine the total available posts in company P, which is $6$.
4. The ratio of posts allotted to males and females is $2:1$. The number of female posts (jobs) is: $\frac{1}{2+1} \times 6 = \frac{1}{3} \times 6 = 2$ posts.
5. Calculate the females who did not get the job by subtracting hired females from interviewed females: $144 - 2 = 142$.
### Exam Strategy & Shortcut
You do not need to solve for $x$ (from the Q and R data) to answer this specific question. Company P's data for interview calls and vacancies is completely independent and given in absolute numbers. Stick strictly to Company P's metrics.
### Common Pitfall
Wasting time calculating $x$ from the $320$ difference equation when it has no bearing on Company P's calculations.
### Final Answer
Therefore, the correct answer is **142**.