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Question

What is a variable?


A
A mathematical statement
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B
A symbol to represent an unknown quantity in an expression
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C
A constant 
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D
An operator
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Solution

The correct option is C A symbol to represent an unknown quantity in an expression
  • 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.

Mathematics

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