Buying and Selling Game Contest #18 – 30 Hive to be won

Hi Everyone,


Welcome to the ‘Buying and Selling’ Game.

How to play?

The ‘Buying and Selling’ Game involves three simple steps.

  1. Choose one or more of six goods to buy.
  2. Choose the city, town, island or planet where you will be buying these goods.
  3. Choose the city, town, island or planet where you will be selling these goods.

All the information you need to know to play the game is provided in the question; i.e. no external research is required as all prices are hypothetical and locations are fictitious.

All entries must be made in the comments section of this post.

Each account is only permitted one entry.

Objectives of the game

The objective of the game is to make the highest profit from the sale of all the goods you have bought. If two participants make the exact same profit, the participant that entered first wins.

If nobody makes a profit (i.e. nobody enters the contest or if all participants make a loss), the prize of 30 Hive will be rolled over to the next contest. Therefore, the prize for the next contest will be 60 Hive.

Game assumptions

All goods of the same type are identical; for example, Good A bought in Town X is the same as Good A bought in Town Y.

There are zero transaction and transport costs.

All cities, towns, islands and planets use the same currency.

What information is provided?

  • All the cities, towns, islands and planets are provided.
  • All the goods that can be bought in the game are provided.
  • All the buying prices of the goods are provided.
  • None of the selling prices of the goods are provided. Instead, a possible range of prices is provided. This range is represented by maximum, minimum, and mode prices (i.e. most frequently occurring price). See diagram below.

Selling Price Distribution

Note: Triangular Distribution

How are the results of the game determined?

A Microsoft Excel Model is used to determine the selling prices of each good in each city, town, island, or planet. These prices will be used to calculate the profits made by each participant. In the results post, the calculation of the selling price will be presented in a video. Below is the results post for Contest 17.


Contest Prizes

The account with the winning entry will receive 30 Hive and the first 12 entries will be given upvotes. The most profitable buying and selling price combination is also calculated. If the winner adopts this strategy, he or she will receive an additional 5 Hive.

Let the contest begin

For Contest 18, the buying and selling game will return to outer space. Trading will take place between planets. These planets specialise in vegetables.

For this contest, participants have been allocated $2,000 to buy 1 or more vegetables from any of the 5 planets. These planets are as follows:

  • Cabba
  • Garl
  • Caulif
  • Potat
  • Letti

See map below:

Map of Planets


All vegetables are available in all 5 planets. The available vegetables are as follows:

  • Carrots
  • Turnips
  • Parsnips
  • Ginger
  • Sweet Potatoes
  • Onions

Table 1 contains the prices of each vegetable for each planet.

Table 1: Prices of vegetables for each planet

Note: Vegetables can only be bought as whole pieces. For example, a participant could only buy 2,857 bags of carrots from Planet Garl, as there is insufficient money to buy the 2,858th bag of carrots.

After buying the vegetables, the participant must then sell all the vegetables he or she has bought on just one of the planets named in the question. Remember, the selling prices are revealed in the results post. These prices are determined using the information provided in Tables 2, 3, and 4.

Table 2: Minimum, maximum, and mode (Cabba & Garl)


Table 3: Minimum, maximum, and mode (Caulif & Potat)


Table 4: Minimum, maximum, and mode (Letti)


Entry format

For this contest, I expect to see entries made in the following format:

Name of Place:
Goods purchased:
Number purchased:
Amount spent on goods:

Name of Place:

Example of entry

Name of Place: Caulif
Goods purchased: Onions
Number purchased: 1,000
Amount spent on goods: $2,000

Name of Place: Potat

The closing date and time for this contest is 6PM coordinated universal time (UTC) 17/04/2021. Responses after this time will not be accepted. The answers will be provided in the results post along with the video containing the generation of selling prices using the model.

I hope everyone has fun and enjoys this contest.

More information

If you want to know more about the ‘Buying and Selling’ Game, I suggest that you watch the following video:

If you have any questions, feel free to ask in the comments section.

More posts


If you want to read any of my other posts, you can click on the links below. These links will lead you to posts containing my collection of works. These 'Collection of Works' posts have been updated to contain links to the Hive versions of my posts.





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