Lego Spike & Python - Challenge 3 Quiz

What is the output of the code shown?

• "5.0"

• 7.0

• 7

• TypeError

Answer explanation

In Python, when an arithmetic operator has operands of different numeric types, such as int and float, the integer operand is widened to a floating point type to perform the operation.

Therefore, the result of an operation between int and float is always float.

In the code shown, what type of data is the result?

• int

• str

• float

• bool

Answer explanation

In Python, when an arithmetic operator has operands of different numeric types, such as int and float, the integer operand is widened to a floating point type to perform the operation.

Therefore, the result of an operation between int and float is always float.

Which of the following statements correctly declares or initializes a variable in Python?

• int a = 10

• a: int = 10

• var a = 10

• a = 10

What will be the output of the code shown?

• 3.33

• 3

• 4.5

• 10.3

Answer explanation

In Python, the integer division (also referred as floor division), consists in discarding the fractional part (or decimals) of the quotient.

So the result, is rounded to the nearest whole number. In this case, 10 // 3 = 3.

In Python, Which is the basic data type for numbers with decimals or fractional parts?

• float

• bool

• str

• int

In Python, Which is the basic data type for numbers without decimals or fractional parts?

• float

• bool

• str

• int

In Python, Which is the basic data type for letters, words, sentences or paragraphs?

• float

• bool

• str

• int

In Python, Which is the basic data type for logic comparisons with only 2 possible alternatives?

• float

• bool

• str

• int

What will be the result of the following expression?

Tip: Remember the precedence or hierarchy of arithmetic operations.

• 12

• 9

• 10

• 11

Answer explanation

The hierarchy or precedence of basic arithmetic operations, when there are no grouping by parenthesis, going from left to right in the equation is:

1. Multiplication

2. Division

3. Addition

4. Substraction

What will be the output of the code shown?

• JohnDoe

• John Doe

• DoeJohn

• Doe+John