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Find the difference between the total male employees representing C and the total female employees representing B. Given data shows the total male and female employees in three companies in a seminar. Read the data carefully and answer the question: In an annual seminar of three companies, A, B, and C, some male and female employees represent their companies. The average number of female employees representing A and B is 420. The total number of male employees in A and B is 1620. The number of female employees is 2/3 and 2/5 of the male employees in A and B respectively. The total female employees representing C are 25% more than the total female employees representing A, and the total male employees representing C are 33.33% more than the total female employees representing B.
- 120
- 140
- 100
- 160
Correct answer: 120
Solution
Let female employees in A and B be F_A and F_B. Since their average is 420, F_A + F_B = 840; and since F_A = 2/3 of male A and F_B = 2/5 of male B with male A + male B = 1620, solving gives F_A = 480 and F_B = 360. Then female C = 25% more than F_A = 600, and male C = 33.33% more than F_B = 480, so the difference is 600 - 480 = 120.
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