Jungback decides to purchase a new laptop and agrees to sell his old laptop to Shizuka for $200. When he goes to the computer retailer he learns that his old laptop would have saved him $900 with a trade in deal on a new model. He now wishes to cancel his agreement with Shizuka on the basis $200 is not adequate consideration for his old laptop. Advise Jungback. Issue & Rule & Application & Conclusion needed for solution Thanks