Question

How many variables are there in the expression (xy + 5)?

• A. 1
• B. 2
• C. 3

Answer 1

The correct option is B 2

Variables are the unknown quantities which can be denoted by the letters such as x. The value of a variable is not fixed.
In the given expression, x and y are variables and 5 is constant.

$\therefore$ Number of variables in the given expression = 2