Lemma
MediumAverages
AQuA-RAT train #51344 · Arithmetic · Averages

The average weight of a group of boys is 30 kg

The average weight of a group of boys is 30 kg. After a boy of weight 45 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #51344

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