\textbf{177-} A graduated cylinder contains water. We drop a 42-gram ball into it, and the water level rises from $50\ \text{cm}^3$ at $5^\circ$ to $54\ \text{cm}^3$. What is the density of the ball in grams per cubic centimeter?
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(1) $3.5$ \quad (2) $10.5$ \quad (3) $21$ \quad (4) $42$
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\textbf{Calculation Space}
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