A man purchases 2 pens for $ 56

A man purchases 2 pens for $ 56. He sells one at 20% profit and the other at a loss of 15%. He neither gains nor loses on the whole. Thus, the cost price of two watches are :

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #80219