Exercise: Python

Questions for: Operators

What is the result of the following operation: 5 % 2?
A:
1
B:
2
C:
2.5
D:
0
Answer: A
The % operator is used for modulus in Python, which returns the remainder of a division operation. In this case, 5 divided by 2 is equal to 2 with a remainder of 1, so the result of the operation is 1.
What is the result of the following operation: 10 // 3?
A:
3.333
B:
3.0
C:
3.33
D:
3
Answer: D
The // operator is used for integer division in Python. This means that the result of the division will be rounded down to the nearest integer. In this case, 10 divided by 3 is equal to 3.333, but since integer division is used, the result will be rounded down to 3.
What is the result of the following operation: 2 ** 3?
A:
6
B:
8
C:
16
D:
64
Answer: B
The ** operator is used for exponentiation in Python. In this case, 2 is raised to the power of 3, which is equal to 8.
What is the result of the following operation: 10 / 3 ?
A:
3
B:
3.0
C:
3.333333
D:
3.3333333333333335
Answer: D

The result of the operation 10 / 3 in Python is 3.3333333333333335.

The 5 you see at the end is just a rounded representation of the number. It's common for floating-point representations to include a small error due to the way computers handle floating-point arithmetic.

Which of the following statements are correct?
  1. The conditional operator (?:) returns one of two values depending on the value of a Boolean expression.
  2. The as operator in C#.NET is used to perform conversions between compatible reference types.
  3. The &* operator is also used to declare pointer types and to dereference pointers.
  4. The -> operator combines pointer dereferencing and member access.
  5. In addition to being used to specify the order of operations in an expression, brackets [ ] are used to specify casts or type conversions.
A:
1, 2, 4
B:
2, 3, 5
C:
3, 4, 5
D:
1, 3, 5
Answer: A
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