Hackerrank Scalar Types and Operators 2

Question 1

What is the result of `7 // 2` in Python?

Accepted Answer

3

Answer

The `//` operator performs floor division, truncating the decimal portion and returning an integer.

Question 2

Which of the following correctly converts the string `'42'` to an integer?

Accepted Answer

int('42')

Answer

The built-in `int()` function converts a string representation of a whole number to an integer.

Question 3

What does `type(3.0)` return?

Accepted Answer

Answer

Any number written with a decimal point is treated as a `float` in Python, and `type()` returns the class object.

Question 4

What is the value of `True + True + False`?

Accepted Answer

2

Answer

In Python, `bool` is a subclass of `int`; `True` equals `1` and `False` equals `0`, so the sum is `2`.

Question 5

What does the expression `not (3 > 2)` evaluate to?

Accepted Answer

False

Answer

`3 > 2` is `True`, and `not True` returns `False`.

(Hackerrank) HackerRank Python Certification Practice Test