Question 9 - Sample Paper 2 by Teachoo - Teachoo Sample Paper

What will be the value of x after the following code is executed:

x = 10

y = 2

x = x ** y

y = x // y

x = x % y

y = y is x

print(x, y)

Options:

A) 0 True

B) 0 False

C) 50 True

D) 50 False

Answer:

Answer by student

B) 0 False

Detailed answer by teachoo

-lock-

Let’s go through each of the options and see why they are correct or incorrect.

• Option A) 0 True

This is incorrect . The value of x is 0, but the value of y is not True.

• Option B) 0 False

This is the correct option. To understand why, let’s trace the execution of the code.

The code starts with assigning the values 10 and 2 to the variables x and y respectively .

Then, it executes the following statements:

x = x ** y : This assigns the value of x raised to the power of y to x. The ** operator is used for exponentiation. So, x ** y is equal to 10 ** 2, which is 100. Hence, x becomes 100.

y = x // y : This assigns the value of x divided by y using integer division to y. Integer division means that the result is rounded down to the nearest integer. So, x // y is equal to 100 // 2, which is 50. Hence, y becomes 50.

x = x % y : This assigns the value of x modulo y to x. The % operator is used for finding the remainder of a division. So, x % y is equal to 100 % 50, which is 0. Hence, x becomes 0.

y = y is x : This assigns the value of y identity comparison with x to y. The is operator is used for checking if two variables refer to the same object in memory. In this case, y and x do not refer to the same object, even though they have the same value. Hence, y is x is False. Therefore, y becomes False.

Finally , the code prints the values of x and y, which are 0 and False respectively. So, the output is 0 False.

• Option C) 50 True

This is incorrect . The value of x is not 50, and the value of y is not True.

• Option D) 50 False

This is incorrect . The value of x is not 50, although the value of y is False.

So, the correct answer is B) 0 False.

-endlock-