To determine how much Molly's family plans to spend on meals, we first need to calculate the amount they spend on gasoline and motel rooms.
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Calculate the amount spent on gasoline and motel rooms:
\[ \text{Amount spent on gasoline and motel rooms} = \frac{30}{20} \times 3000 = \frac{3}{2} \times 3000 = 1.5 \times 3000 = 4500 \]
However, this amount exceeds their budget of $3,000. It's clear there must be a misunderstanding in this fraction; \( \frac{30}{20} \) simplifies to \( \frac{3}{2} = 1.5 \). If they intended perhaps a smaller part of their money from $3000, we should re-evaluate.
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Let's evaluate one more check, considering a possible misunderstanding:
Suppose they correctly utilized 30% for convenience instead of an improper fraction. Thus:
\[ \text{Amount spent on gasoline and motel rooms} = 0.3 \times 3000 = 900 \]
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Now find the remaining amount after spending on gasoline and motel rooms:
\[ \text{Remaining amount} = 3000 - 900 = 2100 \]
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Now calculate how much they will spend on meals:
\[ \text{Amount spent on meals} = \frac{1}{2} \times 2100 = 1050 \]
Therefore, after re-evaluation,
- If "30/20" was a misrepresentation leading to $900 for gas and rooms, which results in the remainder of the pain, \[\bf{1050}\] as meals.
- Clearly here, this wanted clear delineation given as $600, $900, $1,200, or $1,500 does not address this outcome, so units yield couldn't fit here.
Declarations on the meal output or checks may resolve confusion in the discerning figures laid.
Final deduction based on clarity leads not fitting options, leading through logical checks through meals yielding was $1050.