Lemma
MediumPermutations & combinations
AQuA-RAT train #95988 · Combinatorics · Permutations & combinations

In a certain supermarket, a triangular display of cans is arranged in…

In a certain supermarket, a triangular display of cans is arranged in 9 rows, numbered 1 through 9 from top to bottom. Each successively numbered row contains 3 more cans than the row immediately above it. If there are fewer than 120 cans in the entire display, how many cans are in the six row?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #95988

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