Lemma
MediumPermutations & combinations
AQuA-RAT train #8017 · Combinatorics · Permutations & combinations

In how many ways can 5 boys be allotted four different sofas…

In how many ways can 5 boys be allotted four different sofas such that none of the sofas are empty and all the 5 boys are accommodated?

~8 minAnswer checked instantly

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #8017

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your answer

Checked against the answer in AQuA-RAT.