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A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. The average age of the family is
  • a)
    32 2/7 years
  • b)
    31 5/7 years
  • c)
    28 1/7 years
  • d)
    30 5/7 years
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A family consists of two grandparents, two parents and three grandchil...
Total age of the grandparents = 67 * 2
Total age of the parents = 35 * 2
Total age of the grandchildren = 6 * 3
Average age of the family 
= (67 *2 ) + (35*2) + (6*2) / 7
= 134 + 70 + 18 / 7
= 22/7
= 31 5/7 
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Most Upvoted Answer
A family consists of two grandparents, two parents and three grandchil...
Given:
Sale in 1st month = Rs. 6435
Sale in 2nd month = Rs. 6927
Sale in 3rd month = Rs. 6855
Sale in 4th month = Rs. 7230
Sale in 5th month = Rs. 6562

To find:
Sale in 6th month to have an average sale of Rs. 6500

Approach:
We can find the total sale of 5 months and then subtract it from the total sale of 6 months to get the sale in the 6th month.

Steps:
1. Find the total sale of 5 months:
Total sale = 6435 + 6927 + 6855 + 7230 + 6562 = Rs. 34009
2. Find the total sale of 6 months to have an average sale of Rs. 6500:
Total sale = 6 * 6500 = Rs. 39000
3. Find the sale in the 6th month:
Sale in the 6th month = Total sale of 6 months - Total sale of 5 months
= 39000 - 34009
= Rs. 4991

Therefore, the sale in the 6th month to have an average sale of Rs. 6500 is Rs. 4991.
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A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. The average age of the family isa)32 2/7 yearsb)31 5/7 yearsc)28 1/7 yearsd)30 5/7 yearsCorrect answer is option 'B'. Can you explain this answer?
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A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. The average age of the family isa)32 2/7 yearsb)31 5/7 yearsc)28 1/7 yearsd)30 5/7 yearsCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. The average age of the family isa)32 2/7 yearsb)31 5/7 yearsc)28 1/7 yearsd)30 5/7 yearsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. The average age of the family isa)32 2/7 yearsb)31 5/7 yearsc)28 1/7 yearsd)30 5/7 yearsCorrect answer is option 'B'. Can you explain this answer?.
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