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If there are $x$ rows of chairs and each row contains $x 2$ chairs. The total number of chairs from the following choices is:

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x 3

x + x 2

x

x 2 − x

answer is A.

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Detailed Solution

It is given that, there are

x

of rows of chairs.
We know that there are

x 2

of chairs in each row.
Therefore, total number of chairs

=

total number of rows of chairs

×

total number of chairs in each row
On putting the values in the above formula, we get,
Hence, total number of chairs is

x × x 2 = x 3

.
Therefore, there are

x 3

chairs.
Hence, option 1) is correct.

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