Question

the average of a and b is 25. the averege of b and c is 28 . the aevrage of c and a is 21. find the average of A,B and C​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Given $\frac{a+b}{2} = 25$

So $a+b = 50$

Similarly $b+c = 56$

$c+a=42$

Adding all three equations

$2(a+b+c) = 117$

$a+ b+c = \frac{117}{2}$

$\frac{a+b+c}{2}=\frac{117}{4} = 29.25$

Hope it helps!