A shopkeeper sells his goods at cost price but uses a faulty…

A shopkeeper sells his goods at cost price but uses a faulty meter that weighs 900 grams. Find the profit percent.

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 #25631