The average of 3 numbers is 26 and if one no is 46 find the other number .( I need a explanation)
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Let the numbers be a,b&c
The average of 3 number is 36.
(a+b+c)/3=36
a+b+c=108—->Equ 1
The average of 2 numbers is 48
(a+b)/2=48
a+b=96—→Equ 2
Substitute Equ 2 in Equ 1
96+c=108
c=108–96
c=12
The third number is 12.
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