Question

What is a variable?

A

A symbol that takes a fixed numerical value.

B

A symbol that takes various numerical value.

C

A symbol some time fixed and some time variable.

D

cannot be determined.

Easy
Solution
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Correct option is B)

A variable is a symbol or letter, such as or , that represents a value. In algebraic equations, the value of one variable is often dependent on the value of another. Hence it's a symbol that takes various numerical values.

e.g. in the polynomial is a variable. 

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