By investing in 16 % stock at 64, one earns Rs

By investing in 16 % stock at 64, one earns Rs. 1500. The investment made is?

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

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #54681