Average age of 7 members of a family is 29 years. If present age of the youngest member is 5 year, find average age of the remaining members at the time of birth of the youngest member.
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Answer:
Average age 5 years back (of remaining family) was 28
Step-by-step explanation:
Total age of 7 people = 7 x 29 = = 203
5 years ago, sum was = 203 - 7x5 = 168
Average age 5 years back (of remaining family) = 168/6 = 28
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