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[freelancer-rates] Tidy up instructions, syncing wording across cpp, elixir and x86-64-assembly #1654

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angelikatyborska merged 1 commit into from
Oct 2, 2026
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[freelancer-rates] Tidy up instructions, syncing wording across cpp, elixir and x86-64-assembly #1654

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20 changes: 11 additions & 9 deletions exercises/concept/freelancer-rates/.docs/instructions.md
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# Instructions

In this exercise you'll be writing code to help a freelancer communicate with a project manager by providing a few utilities to quickly calculate daily and
monthly rates, optionally with a given discount.
In this exercise, you'll be writing code to help a freelancer communicate with a project manager.
Your task is to provide a few utilities to quickly calculate daily and monthly rates, optionally with a given discount.

We first establish a few rules between the freelancer and the project manager:

- The daily rate is 8 times the hourly rate.
- A month has 22 billable days.

Sometimes, the freelancer is offering to apply a discount on their daily rate (for example for their most loyal customers or for non-for-profit customers).
Sometimes, the freelancer is offering to apply a discount on their daily rate (for example for their most loyal customers or not-for-profit customers).

Discounts are modeled as fractional numbers representing percentage, for example `25.0` (25%).
Discounts are modeled as fractional numbers representing percentages, for example, `25.0` (25%).

## 1. Calculate the daily rate given an hourly rate

Implement a function to calculate the daily rate given an hourly rate:
Implement a function called `daily_rate` to calculate the daily rate given an hourly rate as a parameter.
The contract defines that a day has 8 billable hours.

```elixir
FreelancerRates.daily_rate(60)
Expand All @@ -25,7 +26,7 @@ The returned daily rate should be a float.

## 2. Calculate a discounted price

Implement a function to calculate the price after a discount.
Implement a function `apply_discount` to calculate the price after a discount.

```elixir
FreelancerRates.apply_discount(150, 10)
Expand All @@ -36,7 +37,8 @@ The returned value should always be a float, not rounded in any way.

## 3. Calculate the monthly rate, given an hourly rate and a discount

Implement a function to calculate the monthly rate, and apply a discount:
Implement a `monthly_rate` function to calculate the discounted monthly rate.
It takes two parameters, an hourly rate and the discount in percent.

```elixir
FreelancerRates.monthly_rate(77, 10.5)
Expand All @@ -45,9 +47,9 @@ FreelancerRates.monthly_rate(77, 10.5)

The returned monthly rate should be rounded up (take the ceiling) to the nearest integer.

## 4. Calculate the number of workdays given a budget, hourly rate and discount
## 4. Calculate the number of complete workdays given a budget, hourly rate, and discount

Implement a function that takes a budget, an hourly rate, and a discount, and calculates how many days of work that covers.
Implement a function `days_in_budget` that takes a budget, an hourly rate, and a discount, and calculates how many complete days of work that covers.

```elixir
FreelancerRates.days_in_budget(20000, 80, 11.0)
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