# CAT 2000 | Question: 74

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$\text{A, B, C}$ are three numbers.
Let $@ \text{(A, B)} =$ average of $\text{A}$ and $\text{B}$,
$/ \text{(A, B)} =$ product of $\text{A}$ and $\text{B}$, and
$\text{X(A, B)} =$ the result of dividing $\text{A}$ by $\text{B}$

Average of $\text{A, B}$ and $\text{C}$ is given by

1. $@(/(@(/\text{(B, A)}, 2), \text{C)}, 3)$
2. $\text{X(}@(/(@\text{(B, A)}, 3), \text{C)}, 2)$
3. $/(@(\text{X(}@\text{(B, A)}, 2), \text{C)}, 3)$
4. $/(\text{X(}@(/(@\text{(B, A)}, 2), \text{C)}, 3), 2)$

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