Question 164
A hotel has 5 distinct rooms, all with single beds for up to 2 people. The hotel has no other guests and 5 friends want to spend the night in it. In how many ways can the 5 friends choose their rooms?
MathNet 2018-part-01 — 181 problems (EN–VI) Question 164
Math Olympiad Vault · MathNet 2018-part-01 — 181 problems (EN–VI)