The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years the average of the family at the birth of the youngest member was -
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Q:
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years the average of the family at the birth of the youngest member was -
- 117.5 yearsfalse
- 218 yearstrue
- 315 yearsfalse
- 417 yearsfalse
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