Lemma
MediumAverages
AQuA-RAT train #87067 · Arithmetic · Averages

The average age of 19 boys and the class teacher is 16…

The average age of 19 boys and the class teacher is 16 years. If the ages of the class teacher and one of the boys are excluded, the average age reduces to 15 years. What is the age of the class teacher ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #87067

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