Question : W3Schools Var-Op-D 24

1. Valid vs Invalid Variable Name

_myVar = 10

Is this a valid variable name? Why?

2. Variable Naming Restriction

for = 25

Why can’t this assignment be used?

3. Implicit Type

value = "123"

What data type is stored in value and why?

4. Float Conversion

float("8")

What does this expression return and why?

5. Failed Conversion

int("abc")

Why does this generate a ValueError?

6. Mixed Arithmetic

result = 5 + 2.0

What is the type of result, and why?

7. Zero Division Error

print(10 / 0)

Why does this error occur?

8. Operator Precedence

print(2 + 3 * 4)

Why is the result not 20?

9. Comparison Output

print(5 < 3)

What value does this print, and why?

10. Equality Check

print("5" == 5)

Why does this comparison return False?

11. If Condition Behavior

if 0:
    print("Yes")

Why does this not print anything?

12. Elif Skipping

x = 15
if x > 20:
    print("A")
elif x > 10:
    print("B")

Why does it print only "B"?

13. Unreachable Else

if True:
    print("Hello")
else:
    print("Goodbye")

Why will the else block never run?

14. Indentation Inside Block

if x == 5:
    y = 10
        print(y)

Why does this code show an indentation error?

15. Print Separator Effect

print(1, 2, 3, sep="")

Why does this print 123 without spaces?

16. Changing Print End

print("Start", end="...")
print("End")

How does the end parameter affect the output?

17. String Multiplication

print("Hi" * 3)

Why does this produce HiHiHi?

18. Concatenation Requirement

message = "Age: " + str(30)

Why is str(30) needed here?

19. Triple-Quoted String Not Assigned

"""
Hello
World
"""
print("Done")

Why is the triple-quoted block ignored?

20. Escape Sequence

print("Hello\tWorld")

What does \t do in this output?