1. The average of 3 numbers is 9. If the average of first 2 numbers is 12, what is
third number?
(1) 5
(2) 4
(4) 8
3
Answers
Answered by
0
Answer:
The third number is 3.
Step-by-step explanation:
Explanation:
The average of 3 numbers is 9.
∴ The sum of the 3 numbers is = (9×3)
= 27.
So, the sum of the 3 numbers is 27.
The average of the first 2 numbers is 12.
∴ The sum of the numbers = (12×2)
= 24
∴ The sum of the first 2 numbers is 24.
∴ The third number = (27-24)
= 3
∴ The third number is 3.
Answered by
0
Answer:
i think so
answetr is last number
3
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