Question

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Answer 1

Using the definition for the average, and naming each reasut as:

Average = 73

First score = 76

Second score = x-5

Third score= x

Write the equation

$\begin{gathered} 73=\frac{76+(x-5)+(x)}{3} \\ 73=\frac{71+2x}{3} \\ 219=71+2x \\ 148=2x \\ x=\frac{148}{2} \\ x=74 \end{gathered}$

The second score is 69 and the third score is 74.