Some situations are given below. State the number in situations is a variable or constant ?
Example : Our age - its value keeps on changing so it is an example of a variable quantity.
(i) The number of days in the month of January
(ii) The temperature of a day
(iii) Length of your classroom.
(iv) Height of the growing plant.

Answer

(i) Constant (ii) Variable (iii) Constant (iv) Variable