a family with6members has an average of age of 25 while a family of 9 has an average age of 35 the combined average of both families will be
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Answer:
Total age of First family 25×6=150
Total age of second family 35×9 = 315
Total age of 2 families = 465
Average age of both families = 465/15 = 31
Answered by
1
Answer:
Sum of ages in first family = 6*25 = 150
Sum of ages in second family = 9*35 = 315
Sum of all their ages = 150 + 315 = 465 YEARS
465/15 = 31 IS AVERAGE
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