Question
which of the following lists of operators is ordered by decreasing precedence?
a. +, *, **
b. *, /, %
c. **, *, +
a. +, *, **
b. *, /, %
c. **, *, +
Answers
GPT-4o mini
To determine which list of operators is ordered by decreasing precedence, we need to look at the precedence rules in Python (and most programming languages). Here’s a brief overview of the operators mentioned:
1. `**` (Exponentiation) has the highest precedence.
2. `*` (Multiplication) and `/` (Division) have the next highest precedence, and they are of equal precedence.
3. `+` (Addition) has the lowest precedence among those listed.
4. `%` (Modulus) has the same precedence as `*` and `/`.
With this in mind, let’s review the options:
a. `+, *, **` — This is not in the correct order since `**` should be listed first, followed by `*`, and then `+` which has the lowest precedence.
b. `*, /, %` — This is correctly ordered as all three have the same precedence. However, it does not include `+` or `**`.
c. `**, *, +` — This is correctly ordered by decreasing precedence.
The correct answer is **c. `**, *, +`**.
1. `**` (Exponentiation) has the highest precedence.
2. `*` (Multiplication) and `/` (Division) have the next highest precedence, and they are of equal precedence.
3. `+` (Addition) has the lowest precedence among those listed.
4. `%` (Modulus) has the same precedence as `*` and `/`.
With this in mind, let’s review the options:
a. `+, *, **` — This is not in the correct order since `**` should be listed first, followed by `*`, and then `+` which has the lowest precedence.
b. `*, /, %` — This is correctly ordered as all three have the same precedence. However, it does not include `+` or `**`.
c. `**, *, +` — This is correctly ordered by decreasing precedence.
The correct answer is **c. `**, *, +`**.