Maths Olympiad Prep

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Problem 121

Combinatorics Difficulty 1.1 Multiple choice CEMC Cayley · Canada · 2025

A mother bear collects 1414 fish. She gives 44 fish to each of her 33 bear cubs. How many fish does
the mother bear have left over?

Pick one

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Official solution

Mother bear gives a total of 4×3=124\times3=12 fish to her bear cubs, and so she has 1412=214-12=2 fish left over.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty, ordering) added by this project.