in a set of 5 numbers the average of two is 12 the average of the other 3 is 7 what is the average of all five numbers. (fractio
n or whole number)
1 answer:
Answer:
The average of all 5 numbers is 9
Step-by-step explanation:
Two of the numbers average 12. That means that their total is 2*12 = 24
Three of the other numbers average 7. That means that their total is 7*3 = 21
The total score for the 5 numbers is 24 + 21 = 45
The average for all 5 numbers is 45/5 = 9
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