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igomit [66]
3 years ago
9

there are 20 children at a library 6 of the children have an average age of five years the remaining children have an average ag

e of 8 years what is the average age of all the children at the library
Mathematics
1 answer:
GrogVix [38]3 years ago
5 0
Remaining children = 20-6=14 
So 14 children have age of 8 years old.

Average age = (6*5+14*8)/20 ≈ 7.1 ≈ 7 years old
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