Variables

1.What is a variable?

• a) A type of number
  
  

• b) A container that holds one value at a time

• c) A kind of loop

2. What symbol do we use to assign a value to a variable?

• a) +
  
  

• b) -

• c) =

3.If x is assigned the value 10, what will be the value of x after x = 15?

• a) 10
  
  

• b) 15

• c) 5

4.If d starts at 6 and is increased by 5 three times in a loop, what is the value of d after the first iteration?

• a) 5
  
  

• b) 11

• c) 16

5.What type of data can a variable hold?

• a) Only numbers
  
  

• b) Text, strings, or arrays

• c) Only text

6.If x = 10 and you want to add 5 to x, how would you do it?

• a) x = x + 5
  
  

• b) x + 5 = x

• c) x = 5

7. 7.How many words can be used in a variable name?

• a) Only one
  
  

• b) As many as needed, if done clearly

• c) Exactly three

8.Which of the following is a valid variable name?

• a) variable
  
  

• b) 1variable

• c) variable@name

9.Which of the following is NOT a good practice for naming variables?

• a) Using meaningful names
  
  

• b) Using random letters

• c) Keeping names consistent

10.Can a variable name start with a number?

• a) Yes
  
  

• b) No

• c) Only if it's a special case