Hi, share your knowledge with the community!

# Everyone uses the "How many golf balls fit inside a jumbo jet?" example but I've never heard or seen anyone solve it. How could it be solved????

• Date ascending
• Date descending

I was actually asked a similar question, but with ping pong balls.

The way I went about it (and it seemed to have worked):

• First, i inquired about the Jumbo Jet and, more specifically, i asked if it was compepletely empty or if it was filled with seats and other furniture.
• In case teh interviewer tells you that the airplain is empty, simply calculate the volume of the golf ball, the volume of the different parts of the plane (e.g. body, tail, etc) and then divide the volume of the plane by the volume of the golf ball. Conclude by reducing the number by 5% since it would be impossible for all the balls to perfectly fit in the airplane, hence there is still a certain amount of free space.
• in case the interviewer tells you that the plane is completely furnished, you will have to approximate a capacity of free space (i'd say 60%).
• in this scenario you should also consider the different between the cabin and the luggage storage on the plane (different capacities)

Hope this helps you

## Market Sizing

Market Sizing Cases are used to test your quantitative and reasoning skills. The interviewer evaluates your structure, numbers-handling and business sense.

12 Comment(s)

## Important Facts

It's essential to know some key figures regarding geographies, population, economies for your case interviews. We summarized them for you here.

9 Comment(s)

## Oliver Wyman case: Full Electrons Ahead

Solved 16.1k times | Rating: (4.8 / 5.0)

Your client, large automotive OEM WyCar, has developed its first fully electric vehicle (EV) and introduced it as a pilot on the Austrian market last year. However, sales have been far below the expected numbers. The management has engaged you to support them in understanding the reasons and advise ... Open whole case

Solved 26.9k times | Rating: (4.5 / 5.0) |

Nutripremium is a very well-known premium nutrition food company in Europe (€1 billion revenue last year). It is based in Spain and has an excellent market share not only in its home country but also in Portugal, France, Italy and Germany. Nutripremium has two main lines of products: Vitam ... Open whole case

## Children vaccine

Solved 25.6k times | Rating: (4.4 / 5.0) |

Beyer, one of the biggest pharmaceutical companies in the world, just invented a very reliable vaccine against Chickenpox, a disease that affects children in the age from 2 to 16 years. Beyer came to you wondering what their potential sales in Europe in the first year would be if they launched th ... Open whole case

## Gas station

Solved 18.7k times | Rating: (4.3 / 5.0) |

How many gas stations are there in Paris? Suppose a friend of yours wants to open a gas station in Paris. What aspects should he consider? Open whole case

## Fairway

Solved 11.6k times | Rating: (4.4 / 5.0) |

Your client, Fairway, is a manufacturer and supplier of golf balls. The company is acting globally in almost every market. They are now planning to expand to Portugal, but they do not have any information about the market there. Portugal is a small country in West Europe with a population o ... Open whole case