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AQuA-RAT train #46745 · Algebra · Algebra word problems

In an electric circuit, two resistors with resistances 8 ohms and 9…

In an electric circuit, two resistors with resistances 8 ohms and 9 ohms are connected in parallel. In this case, if R is the combined resistance of these two resistors, then the reciprocal of R is equal to the sum of the reciprocals of two resistors. What is R value ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #46745

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