Lemma
MediumRatio, proportion & variation
AQuA-RAT train #67686 · Algebra · Ratio, proportion & variation

The ratio of investments of A and B is 8 : 7…

The ratio of investments of A and B is 8 : 7 and the ratio of their yearend profits is 20 : 21. If B invested for 12 months, then find the period of investment of A:

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #67686

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