SSC
COMPUTER
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following is NOT true about variables?
|
|
The value stored by a variable cannot change.
|
|
|
Variables are a name for a spot in the computer’s memory
|
|
|
the value stored by a variable can be changed.
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -Variable names cannot start with number. For example, 1test is an invalid variable name. The value stored by a variable cannot change. Variables are a name for a spot in the computer’s memory The value stored by a variable can be changed.
Detailed explanation-2: -A variable cannot be subtracted. A variable represents a quantity. so X is representing a quantity which is 1. So the statement is TRUE.
Detailed explanation-3: -Once you declare a variable and assign it a value, your program can manipulate what’s stored in the variable as it runs, like a score in a game, for example.
There is 1 question to complete.