Question

A variable is a/an ___ .

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

Answer 1

The correct option is B

symbol to represent an unknown quantity in an expression

A variable is a symbol representing a quantity whose value is unknown. Typically, we use a single alphabet to represent a variable. In the expression $x+4=5$, x represents variable.