How much time will it take for an amount of Rs

How much time will it take for an amount of Rs. 400 to yield Rs. 60 as interest at 12% per annum of simple interest?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #17385

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