Lemma
MediumAverages
AQuA-RAT train #12405 · Arithmetic · Averages

The youngest of 4 children has siblings who are 3, 5, and…

The youngest of 4 children has siblings who are 3, 5, and 8 years older than she is. If the average (arithmetic mean) age of the 4 siblings is 21, what is the age of the youngest sibling?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #12405

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