Python Modulus and Floor Division Operators Quiz

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Questions and Answers

What is the purpose of the Modulus (%) operator in Python?

To find the remainder of the division of the left operand by the right operand.

How is the Exponent and Assignment Operator (**=) used in Python?

It calculates the exponent value using both operands and assigns the result to the left operand.

In Python, what does the Floor division operator (//) do?

It divides the left operand by the right operand and assigns the floor value to the left operand.

What is the output of the Python code snippet: a = 80, b = 6, a %= b?

2 Signup and view all the answers

Given a = 131, b = 6, what will be the output of a //= b in Python?

21 Signup and view all the answers

What is the result of the expression a *= b if a = 15 and b = 4?

60 Signup and view all the answers

Explain the purpose of the Exponent and Assignment Operator in Python with an example.

It calculates the exponentiation of two operands and stores the result in the left operand. Signup and view all the answers

In Python, what does the /= operator do?

Divides the left operand by the right operand before assigning the result to the left operand. Signup and view all the answers

If a = 80 and b = 4, what is the value of a after the operation a /= b?

20.0 Signup and view all the answers

Explain the difference between *= and /= operators in Python.

The *= operator multiplies the left operand by the right operand and assigns the result to the left operand, while the /= operator divides the left operand by the right operand and assigns the result to the left operand. Signup and view all the answers

What is the purpose of the %= operator in Python?

Divides the left operand by the right operand and places the remainder in the left operand. Signup and view all the answers

How would you modify the value of a variable 'num' by multiplying it with 5 using the *= operator in Python?

num *= 5 Signup and view all the answers

What is the purpose of the Add and Assignment Operator (+=) in Python?

Adds the right side operand or value to the left operand before assigning the result to the left operand. Signup and view all the answers

In Python, what does the Subtract and Assignment Operator (-=) do?

Subtracts the right side operand or value from the left operand and stores the result in the left operand. Signup and view all the answers

Explain the purpose of the Multiply and Assignment Operator (*=) in Python.

Multiplies the right side operand or value to the left operand and stores the product in the left operand. Signup and view all the answers

What is the result of the expression: a = 5; b = 3; a += b; print(a); in Python?

Output = 8 Signup and view all the answers

If a = 10 and b = 2, what will be the output of the expression: a -= b; print(a); in Python?

Output = 8 Signup and view all the answers

Given a = 4 and b = 3, what will be the output of the expression: a *= b; print(a); in Python?

Output = 12 Signup and view all the answers

Study Notes

Modulus Operator (%)

The modulus operator (%) finds the remainder of a division.
It helps determine if a number is divisible by another or to extract the last digits of a number.

Exponent and Assignment Operator (**=)

The exponent and assignment operator (**=) combines exponentiation and assignment.
It raises a variable to a power and assigns the result back to the same variable.
Example: x **= 2 is equivalent to x = x ** 2.

Floor Division Operator (//)

The floor division operator (//) performs integer division, rounding down to the nearest whole number.
It provides the quotient of a division without any fractional part.

Output of `a %= b`

When a = 80 and b = 6, the expression a %= b calculates the remainder of 80 divided by 6, which is 4.
The result (4) is then assigned back to a.

Output of `a //= b`

When a = 131 and b = 6, the expression a //= b performs floor division, dividing 131 by 6 and rounding down to 21.
This result (21) is then assigned back to a.

Result of `a *= b`

When a = 15 and b = 4, the expression a *= b multiplies a by b, yielding 60.

Purpose of Exponent and Assignment Operator

The exponent and assignment operator simplifies coding by directly raising a variable to a power and assigning the result to the same variable.
Example: x **= 2 is equivalent to x = x ** 2, but x **= 2 is more compact and efficient.

/= Operator

The /= operator divides the left-hand operand by the right-hand operand and assigns the result to the left-hand operand.
It effectively performs division and updates the variable in one step.

Value of `a` after `a /= b`

When a = 80 and b = 4, the expression a /= b divides a by b (80 / 4), resulting in 20.
This value (20) is then assigned back to a.

Difference between *= and /=

The *= operator multiplies the left-hand operand by the right-hand operand and assigns the product to the left-hand operand.
The /= operator divides the left-hand operand by the right-hand operand and assigns the quotient to the left-hand operand.

Purpose of %= Operator

The %= operator calculates the remainder after dividing the left-hand operand by the right-hand operand and assigns the remainder to the left-hand operand.
It is used to find remainders and manipulate values based on divisibility.

Modifying 'num' using *=

To multiply the variable 'num' by 5 using the *= operator, you can use the following code:
num *= 5

Purpose of += Operator

The += operator adds the right-hand operand to the left-hand operand and assigns the sum to the left-hand operand.
It allows for concise addition and assignment in a single operation.

Subtract and Assignment Operator (-=)

The -= operator subtracts the right-hand operand from the left-hand operand and assigns the difference to the left-hand operand.
It provides a compact way to subtract from a variable and update it in one step.

Purpose of *= Operator

The *= operator multiplies the left-hand operand by the right-hand operand and assigns the product to the left-hand operand.
It offers a concise method to perform multiplication and assignment simultaneously.

Output of `a = 5; b = 3; a += b; print(a);`

The code initializes a to 5 and b to 3.
a += b adds b to a, resulting in a becoming 8.
The print(a) statement then displays the value of a (which is now 8).

Output of `a = 10; b = 2; a -= b; print(a);`

The code sets a to 10 and b to 2.
a -= b subtracts b from a, resulting in a becoming 8.
The print(a) statement displays the value of a (which is now 8).

Output of `a = 4; b = 3; a *= b; print(a);`

The code sets a to 4 and b to 3.
a *= b multiplies a by b, resulting in a becoming 12.
The print(a) statement displays the value of a (which is now 12).

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Description

Test your knowledge on the Modulus (%) and Floor Division (//) operators in Python with this quiz. Learn how these operators work and how to use them in Python programming.