The average age of 7 member of Patels family is 25 year. The average age of the same family 3 year ago wasa)21 yearb)22 yearc)25 yeard)none of theseCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Answer:

Given information:
- The average age of 7 members of Patel's family is 25 years.
- The average age of the same family 3 years ago was _______.

To find the answer, let's break down the problem and solve it step by step.

Step 1: Calculate the sum of the current ages of the 7 family members.
- Average age = Sum of ages / Number of members
- Given average age = 25 years
- Number of members = 7
- Sum of ages = Average age * Number of members
= 25 years * 7
= 175 years

Step 2: Calculate the sum of the ages of the family members 3 years ago.
- To find the sum of ages 3 years ago, we need to subtract 3 from each member's current age.
- Sum of ages 3 years ago = Sum of current ages - (Number of members * 3)
= 175 years - (7 * 3)
= 175 years - 21 years
= 154 years

Step 3: Calculate the average age of the family members 3 years ago.
- Average age 3 years ago = Sum of ages 3 years ago / Number of members
= 154 years / 7
= 22 years

Therefore, the average age of the same family 3 years ago was 22 years. Hence, option B is the correct answer.

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