To find out how many chairs will be stored as extra, we first need to determine the total number of chairs and how many chairs each classroom will receive.
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Calculate the total number of chairs:
- First order: 180 chairs
- Second order: 204 chairs
Total chairs = 180 + 204 = 384 chairs
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Determine how many chairs each classroom receives:
- There are 17 classrooms.
The number of chairs each classroom would receive is calculated by dividing the total number of chairs by the number of classrooms: \[ \text{Chairs per classroom} = \frac{384}{17} \approx 22.588 \] Since the number of chairs per classroom must be a whole number, we consider only the whole number of chairs each classroom can receive. Each classroom can receive 22 chairs.
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Calculate the total number of chairs distributed to classrooms: \[ \text{Total chairs distributed} = 22 \times 17 = 374 chairs \]
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Calculate the number of extra chairs: \[ \text{Extra chairs} = \text{Total chairs} - \text{Total chairs distributed} = 384 - 374 = 10 chairs \]
Thus, the number of extra chairs after distributing them to the classrooms is 10 chairs, which corresponds to option A.