Stevens placed an ad in a literary magazine offering $7,400 for a complete set of Vacation in Paradise, a five volume set. Adams, who was not aware of the offer, gave to Stevens four volumes of the Vacation in Paradise set as a birthday present. Adams was informed of the offer at some point, obtained the missing volume, brought the volume to Stevens and requested the $7,400 payment. Stevens refused. If Adams sues, will he prevail

Yes he will prevail because the advert placed is a unilateral contract

Explanation:

A unilateral contract is one that has only one promisor who receives a promise for his from the offeror. It is usually settlement for a particular service or product.

On the other hand bilateral agreement has both parties as the promisor and offeror. Meaning both of them have conditions that must be fulfilled in the contract by the other person.

In the given instance Stevens placed an ad in a literary magazine offering $7,400 for a complete set of Vacation in Paradise, a five volume set.

Any service short of this can be viewed as a failure in the contract.

Adams gave to Stevens four volumes of the Vacation in Paradise set as a birthday present. Adams was informed of the offer at some point, obtained the missing volume, brought the volume to Stevens.

Since Adams had not initially satisfied conditions set by Stevens, Stevens can refuse to make the $7,400 payment