4.

Randel and leary negotiated the price that leary ws willing to pay for an oil painting that she discovered in randel's shop. neither know the real value of the painting or had any knowledge of the artist's requtation. although leary paid the $75 that they both agreed on, it later turned out that she had purchased. a painting worth several thousnd dollars. Randel demanded the return of the painting, claiming that there had been a mutual mistake. was there a valid contract between randel and leary ? why?