Lemma
MediumAverages
AQuA-RAT train #76448 · Arithmetic · Averages

A family consists of two grandparents, two parents and 6 grandchildren

A family consists of two grandparents, two parents and 6 grandchildren. The average age of the grandparents is 60 years, that of the parents is 30 years and that of the grandchildren is 5 years. What is the average age of family?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #76448

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