Question

Which of the following is not a variable?

• A. year of birth
• B. temperature of a place
• C. rainfall in each rainy season
• D. duration of day at a place

Answer 1

The correct option is D

duration of day at a place

Variable: The value which varies frequently is known as variable. For Eg: monthly expenditure and savings, speed of vehicles etc.

Constant :he value which is fixed is known as constant . For Eg : date of birth, independence day of any country etc.

Based on the above definition, option (A) ,option (B),option (C) year of birth, temperature of a place , rainfall in each rainy season are variables while option (D) duration of day at place is a constant.

Thus, Option (D) is the correct answer