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Question

A variable is to represent an unknown quantity in an expression.

A
an operator
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B
a number
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C
a symbol
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Solution

The correct option is C a symbol
A variable is a symbol representing a quantity whose value is unknown. Generally, we use a single letter to represent a variable.
Suppose there are students in a classroom. Here, we don't know the actual count of the number of students. So, we will represent the total number of students by x, which is a variable.

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