Lesson 3: Variables and Operators in Python

1. Which of the following is a valid variable name in Python?

a) 2var
b) my_variable
c) my-variable
d) my variable

2. What is the output of 5 // 2 in Python?

a) 2.5
b) 2
c) 3
d) 2.0

3. What operator is used for exponentiation in Python?

a) ^
b) **
c) ^^
d) //

4. What is the result of 10 % 3?

a) 1
b) 3
c) 0
d) 10

5. What is the output of x = 5; x += 3; print(x)?

a) 5
b) 3
c) 8
d) Error

6. What type of operator is and in Python?

a) Arithmetic
b) Logical
c) Comparison
d) Assignment

7. Which comparison operator checks if two values are NOT equal?

a) ==
b) =!
c) !=t
d) <>

8. What is the result of bool("False")?

a) False
b) True
c) None
d) Error

9. What happens if you assign a new value to an existing variable?

a) The old value is retained
b) The variable is deleted
c) The new value replaces the old one
d) An error occurs

10. What is the output of print(2 * (3 + 5))?

a) 11
b) 16
c) 13
d) 10

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