Ram professes to sell his goods at the cost price but he…

Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain 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 #3955