Question

the average of A B C is 28 years . is the average age of B and C is 29 years .what is the age of A in years.​

Answer 1

Answer:

Age of A is 26 years

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Let 3x be the age of ABC

$abc \: = \frac{3x}{3} = 28$

$abc \: = \frac{29 + x}{3} = 28$

$= 29 + x = 28 \times 3$

$29 + x = 84$

$x \: = 84 - 29$

$x \: = 54$

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