344 INSTRUCTOR’S MANUAL TO ACCOMPANY BUSINESS LAW, ELEVENTH EDITION
The buyers would have a less plausible basis for claiming that they were not aware of this term.
Restatement (Second) of Contracts, Section 152
The Restatement (Second) of Contracts is an authoritative source for many of the principles discussed in this
chapter. Specific sections of the Restatement are noted throughout the text. After selected parts of the text in which a
section is noted, the full text of that section is set out. The following is the section that relates to this part of the text—
Restatement (Second) of Contracts, Section 152.
§ 152. When Mistake of Both Parties Makes a Contract Voidable
(1) Where a mistake of both parties at the time a contract was made as to a basic assumption on which the contract
affected party unless he bears the risk of the mistake under the rule stated in § 154.
(2) In determining whether the mistake has a material effect on the agreed exchange of performances, account is taken
of any relief by way of reformation, restitution, or otherwise.
2. Unilateral Mistakes of Fact
A unilateral mistake occurs when one party is mistaken. Generally, the mistaken party has no right to
relief. There are two exceptions. The rule is not applied if the other party knew or should have known
that a mistake was made. Also, some states will not enforce, or may reform, a contract in which an error
was due to a significant mathematical mistake and it was done inadvertently and without gross
negligence (for example, a typo).
ANSWER TO VIDEO QUESTION LTR. A
What kind of mistake is involved in the dispute shown in the video (mutual or unilateral, mistake of fact or mistake
of value)? This was a unilateral mistake of fact having to do with the price of the peppers, not a mistake of value having
to do with the quality of the peppers.
ANSWER TO VIDEO QUESTION LTR. B
According to the chapter, in what two situations would the supermarket be able to rescind a contract to sell
peppers to Melnick at the incorrectly advertised price? The general rule is that unilateral mistake does not afford the