Variables & Expressions

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Programme

Which of the following is a comment in Python?

1 point

/* This is a test */

// This is a test

# This is a test

* This is a test

What does the following code print out?

print("123" + "abc")

1 point

hello world

123abc

This is a syntax error because you cannot add strings

123+abc

Which of the following variables is the "most mnemonic"?
*

1 point

hours

variable_173

x1q3z9ocd

Which of the following is not a Python reserved word?
*

1 point

continue

for

break

spam

Assume the variable x has been initialized to an integer value (e.g., x = 3). What does the following statement do?
x = x + 2
*

1 point

This would fail as it is a syntax error

Create a function called "x" and put the value 2 in the function

Exit the program

Retrieve the current value for x, add two to it and put the sum back into x

Which of the following elements of a mathematical expression in Python is evaluated first?
*

1 point

Subtraction -

Multiplication *

Addition +

Parentheses ( )

What is the value of the following expression -

42 % 10

1 point

1042

420

What will be the value of x after the following statement executes:

x = 1 + 2 * 3 - 8 / 4

1 point

5.0

3.0

What will be the value of x when the following statement is executed:

x = int(98.6)

1 point

100

What does the Python input() function do?

1 point

Connect to the network and retrieve a web page.

Read the memory of the running program

Pause the program and read data from the user

Take a screen shot from an area of the screen

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