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25 lines
1.6 KiB
Markdown
25 lines
1.6 KiB
Markdown
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# Hints
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## 1. Determine if you will need a driver's license
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- Use the [equals comparison operator][comparison-operators] to check whether your input equals a certain string.
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- Use one of the two [logical operators][logical-operators] you learned about in the boolean concept to combine the two requirements.
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- You do **not** need an if-statement to solve this task. You can return the boolean expression you build directly.
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## 2. Choose between two potential vehicles to buy
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- Use a [comparison operator][comparison-operators] to determine which option comes first in lexicographical order.
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- Then set the value of a helper variable depending of the outcome of that comparison with the help of an an [if-else statement][if-statement].
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- Finally construct the recommendation sentence.
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For that you can use the `+` operator to concatenate the two strings.
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## 3. Calculate an estimation for the price of a used vehicle
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- Start with determining the percentage of the original price based on the age of the vehicle.
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Save it in a helper variable. Use an [if-else if-else statement][if-statement] as mentioned in the instructions.
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- In the two if conditions use [comparison operators][comparison-operators] to compare the age of the car to the threshold values.
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- To calculate the result, apply the percentage to the original price. For example `30% of x` can be calculated by dividing `30` by `100` and multiplying with `x`.
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[comparison-operators]: https://golang.org/ref/spec#Comparison_operators
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[logical-operators]: https://golang.org/ref/spec#Logical_operators
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[if-statement]: https://golang.org/ref/spec#If_statements
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