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A committee of few members to be formed out of 7 males and 5 females
In how many ways a committee can be formed of 6 members having 3 males and 3 females.

A

250

B

300

C

350

D

400

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of forming a committee of 6 members consisting of 3 males and 3 females from a group of 7 males and 5 females, we can use the combination formula, which is denoted as \( nCr \) and is calculated as: \[ nCr = \frac{n!}{r!(n-r)!} \] ### Step-by-Step Solution: 1. **Determine the number of males and females needed:** - We need to select 3 males from 7 males. - We also need to select 3 females from 5 females. 2. **Calculate the combinations for males:** - The number of ways to choose 3 males from 7 is given by \( 7C3 \). - Using the combination formula: \[ 7C3 = \frac{7!}{3!(7-3)!} = \frac{7!}{3! \cdot 4!} \] - Simplifying this: \[ 7C3 = \frac{7 \times 6 \times 5}{3 \times 2 \times 1} = \frac{210}{6} = 35 \] 3. **Calculate the combinations for females:** - The number of ways to choose 3 females from 5 is given by \( 5C3 \). - Using the combination formula: \[ 5C3 = \frac{5!}{3!(5-3)!} = \frac{5!}{3! \cdot 2!} \] - Simplifying this: \[ 5C3 = \frac{5 \times 4}{2 \times 1} = \frac{20}{2} = 10 \] 4. **Calculate the total number of ways to form the committee:** - Since the selections of males and females are independent, we multiply the two results: \[ \text{Total Ways} = 7C3 \times 5C3 = 35 \times 10 = 350 \] 5. **Final Answer:** - The total number of ways to form a committee of 6 members with 3 males and 3 females is **350**.
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