Explanation:

- The relationship given is a direct variation, meaning \( y = kx \) for some constant \( k \).

- Given \( y = 61 \) when \( x = 42 \), we solve for \( k \):

$$ k = \frac{y}{x} = \frac{61}{42} $$

- To find \( y \) when \( x = 54 \):

$$ y = kx = \frac{61}{42} \times 54 $$

- Compute \( y \):

$$ y = \frac{61 \times 54}{42} = 78.428571... $$

- Rounding gives \( y = 78 \), matching Option:2.

Option:2, 78

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