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Question


Which of the following is a variable?


Options:
A .   Number of days in a week
B .   5
C .   Temperature of a place in a day at different times
D .   Number of months in a year
Answer: Option C
:
C
The temperature of a place in a day at different times will be different. So it is a variable.
The number of days in a week and the number of months in a year always remain the same. So these are constants.
5 has a fixed value. So it is a constant.

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