Case Question: Download Case PDF

Tell me in a London Underground tube station there are two up escalators but only one going down. Why?

Answers:

Answer #1People leave trains packed in a group, so arrive at the escalators at the same time, but tend to go down to the trains in a more even stream.

Answer #2Some people can walk down the stairs easily, saves on maintenance and electricity cost.

Download Case PDF Read All 26 Case Questions

Previous Question

Next Question

Suppose I spend a third of my money on a guitar, half the rest on a microphone and a quarter of what I then have left on a kazoo. What proportion of my original money do I have left?

Suppose if there are three boxes, one contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes have been incorrectly labeled such that no label identifies the actual contents of the box it labels. Opening just one box, and without looking in the box, you take out one piece of fruit. By looking at the fruit, Tell me how can you immediately label all of the boxes correctly?