Use Kotlin conditionals to create a self-grading quiz!


Take a look at the variables in **Quiz.kt**; each variable represents a quiz answer.

We'll create 4 quiz questions using print statements and 4 variables that store a user's input.

For question 1, create a print statement that asks `"What is 75 / 5?"`.

Then, create a variable called `studentAnswer1` that stores the user's input as a number-based value. 

**Note:** See the **Hint** to learn how to store user input as an Int.

For question 2 of the quiz, ask the user for the value of `y` in the equation: `6 * 2y = 36`

Create a variable called `studentAnswer2` that stores the user's answer as an Int.

Create a third print statement that asks the user to name the type of triangle that has two equal sides.

Store the user's answer as String in a variable called `studentAnswer3`.

Create a print statement that asks the user for the value of `8 * 6 - (3 - 2)`.

Store the user's input as an Int variable named `studentAnswer4`.

Create a variable called `points` and set its value to `0`.

This variable will be used to keep track of the student's score.

First, let's grade question 1.

If the value of `studentAnswer1` is equivalent to `quizAnswer1`, increase the value of `points` by `25`.

Let's move on to question 2. This question gives a student multiple opportunities to earn points.

If the value of `studentAnswer2` equals `quizAnswer2`, increase `points` by  `25`.

However, if the value of `studentAnswer2` is the value of `quizAnswer2` plus or minus `1`, increase `points` by `20` and output the following statement:
```
The answer [studentAnswer2] is within 1 point of [quizAnswer2].
```

Otherwise, increase `points` by `1`.

Let's grade question 3.

If the value of `studentAnswer3` equals `quizAnswer3`, increase `points` by `25`.

However, increase `points` by `10` if the value of `studentAnswer3` is equal to `"equilateral"`.

Otherwise, increase `points` by `1`.

Let's grade question 4.

If `studentAnswer4` equals `quizAnswer4`, then increase `points` by `25`.

However, if `studentAnswer4` has a value between `44` and `54`, increase `points` by `20`.

Otherwise, increase `points` by `1`.

Use the value of `points` to determine the student's letter grade.

If `points` is between...

`0` to `59`:
* Print that the student received an F.

`60` to `69`:
* Print that the student received a D.

`70` to `79`:
* Print that the student received a C.

`80` to `89`:
* Print that the student received a B.

`90` to `100`:
* Print that the student received an A.

`101` to `110`:
* Print that the student received an A+.

Run the code in the bash terminal to test your program.

See the **Hint** for instructions on running the code in the bash terminal.

Great job completing the project!

If you want to keep challenging yourself, check out these additional tasks:

* Create your own set of quiz questions.
* If you used a when expression to find the student's final letter grade, modify your code to use an `if`/`else`-`if`/`else` statement, or vice versa!

Sample Solutions:

* [Quiz.kt](https://github.com/Codecademy/learn-kotlin/blob/main/3-conditional-expressions/Quiz.kt)

If you make something cool, share it with us!

Self-Grading Quiz

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