Average of 3 numbers is 9.if average of first two number be 12,then find the third number
Answers
Answered by
27
The third number is 24.
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.
#answerwithquality
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Answered by
4
Answer:
3 is answer
Step-by-step explanation:
average of 3 number is 9
sum of 3 nunber = 9*3 =27
average of two number is 12
sum of two number = 12*2 = 24
third number = 27-24 = 3
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