Two balls per game or per player?

New answer on Oct 07, 2020
3 Answers
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Anonymous A asked on Feb 21, 2020

For the calculation of the market size using the golf course approach, the information states that 2 balls are lost per game. However the solution seems to focus on the balls lost per player. Can anyone please explain the discrepancy?

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replied on Oct 07, 2020
Preparing for 1st round interviews, starting to apply, mid-advanced with casing

I see your point.

If during 1 game 2 balls are lost and there are 2 players in the game it means 1 ball lost/player.

I am also wondering why it is not calculated in this way.

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Content Creator
replied on Feb 26, 2020
BCG |NASA | SDA Bocconi & Cattolica partner | GMAT expert 780/800 score | 200+ students coached


I don't understand why you think that there is a descrepancy.
THe logical sequence is:

  • Balls lost per game
  • Balls lost per playes
  • Total number of lost balls

WHy the 2 approaches should be mutually exclusive in your opinion?


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Content Creator
replied on Feb 23, 2020
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep

So, here you're trying to figure out how many balls are purchased each year. One can assume that the # of balls purchased is the number of balls lost (replenishment rate).

Now let's work backwards:

I know the population of players in Portugal, but now I need to know how many balls this whole population needs. If I get the # of balls lost each year, on average, per player, then I can multiply this by the whole population of players get to total demand.

The # of balls lost each year per player can be found by figuring out # of games played per year times # of balls lost each game.

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