Question

Classify the following as Valid/Invalid Identifier name.
[ Add-Num, Sum2, AreaSquare, Currency$, 4Sum, Multiply*2 ]

Answer 1

Answer:

add num-

Explanation:

i think this is the right answer

Answer 2

Answer:

Serial_no. = invalid as we can’t use ‘.’ in variable names

ii. 1st_Room = invalid as we can’t begin variable names with digits

vi. total-Marks = invalid as ‘-’ is not allowed in variable names

iv. Total Marks = invalid as there are two separate words in the variable name

viii.True = invalid as it is a keyword