Boris skydives from a plane and gets tangled in a tree, hopelessly suspended and swinging precariously in his parachute from the branches of the tree. Natasha sees that he is in trouble and comes to his rescue. Once Boris is safely on the ground, he gratefully promises to give Natasha half of his life savings account. When he changes his mind, Natasha will probably be unsuccessful in enforcing his promise.

Question

Quizplus · Accepted Answer

Boris made his promise after Natasha had performed, so the promise is based on past consideration.

Boris Skydives from a Plane and Gets Tangled in a Tree