I've designed a few applied problems with business analytics/money calculations. However, I'm not sure which age (or rather, which grade) are those best to introduce.
- on one hand, solution uses only + - * / and percents
- on the other hand, cognitive load is high, because too many word concepts are laid out together
- they also contain uncertainty, there is not enough information for precise solution, so it requires introducing variables/parameters/assumptions
I really tried to model business and money stuff.
So which grade do those exercises best belong to?
The company XXX spent 300_000 UAH and developed an online MMO game. All the users are predicted to pay cumulatively $10_000 each month. How many months is required for game to pay off?
The company XXX doesn't get all the money users pay it. 30% takes the market place (Apple Store or Google Play), 18% are taxed by govt, it also has to compensate 70_000 UAH/month to each of 2 programmers. Now, when would game pay off?
30_000 users in-game cumulatively pay \$10000 per month. How many users should you buy additionally, so you have enough money for Lexus RX 350 credit (600_000 UAH)? You can buy users at Instagram for \$1 per user.