Average of 3 numbers is 8, and that of the first two is 11. Find the third number.
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the third no is 2
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Answer:
Step-by-step explanation:
(A+B+C)/3=8
(A+B)/2=11
A+B=11×2=22
(A+B+C)/3=(22+C)/3=8
22+C=8×3=24
C=24-22=2
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