Hi could someone give me their solution approach to this question for comparison?

Thanks in advance!

expert

Expert with best answer

Hi could someone give me their solution approach to this question for comparison?

Thanks in advance!

1 answer

Hi,

I will use the following approach:

You may use the speed of a plain as the benchmark and assume that the Ocean 1/2 of a Sphere:

- It takes X hours to fly from A to B over the Atlantic Ocean
- The average speed of a plane is Z
- Thus the radius of the Ocean is 1/2 * X* (Z-1) (Because it takes extra hour to take off and land)
- The volume of the sphere is 4/3 * p* rˆ3
- The volume of the Ocean is 1/2 * 4/3 * p * rˆ3 (Half of the sphere)

Best

Questions among all tests can be categorized in math, GMAT-style, chart reading and brain teaser questions. Each type needs to be approached differently.

Learn how to tackle brain teasers and what purpose they serve in consulting case interviews