
180
Step 1: Understand the problem.
We are asked to find the total number of women in departments II and III together. The number of employees and the men-to-women ratios are given for each department.
Step 2: Calculate the number of women in Department II.
- Number of employees in Department II = \( 15\% \times 1200 = 180 \) employees.
- The ratio of men to women in Department II is 4:1. Therefore, the number of women in Department II is:
Women in Department II = \( \frac{1}{5} \times 180 = 36 \) women.
Step 3: Calculate the number of women in Department III.
- Number of employees in Department III = \( 20\% \times 1200 = 240 \) employees.
- The ratio of men to women in Department III is 2:3. Therefore, the number of women in Department III is:
Women in Department III = \( \frac{3}{5} \times 240 = 144 \) women.
Step 4: Calculate the total number of women in Departments II and III.
The total number of women in Department II and III together is:
Total women = \( 36 + 144 = 180 \) women.
Final Answer:
The correct option is (E): 180.
18 : 15
Step 1: Understand the problem.
We are asked to find the ratio of men in Department II to the women in Department V. The number of employees and the men-to-women ratios for each department are provided.
Step 2: Calculate the number of men in Department II.
- Number of employees in Department II = \( 15\% \times 1200 = 180 \) employees.
- The ratio of men to women in Department II is 4:1. Therefore, the number of men in Department II is:
Men in Department II = \( \frac{4}{5} \times 180 = 144 \) men.
Step 3: Calculate the number of women in Department V.
- Number of employees in Department V = \( 15\% \times 1200 = 180 \) employees.
- The ratio of men to women in Department V is 1:2. Therefore, the number of women in Department V is:
Women in Department V = \( \frac{2}{3} \times 180 = 120 \) women.
Step 4: Calculate the ratio of men in Department II to women in Department V.
The ratio is:
\( \frac{144}{120} = \frac{18}{15} = 18:15 \)
Step 5: Conclusion.
The ratio of men in Department II to women in Department V is 18:15.
Final Answer:
The correct option is (A): 18 : 15.
If the price of a commodity increases by 25%, by what percentage should the consumption be reduced to keep the expenditure the same?