A nursery has exactly seven types of trees: 1, 2, 3, 4, 5, 6, and 7. Choose five different types of trees to plant in the yard using the following guidelines:
If type 2 is chosen, type 4 cannot be chosen.
If type 3 is chosen, type 6 must be chosen.
If type 5 is chosen, type 7 must be chosen.
Which of the following combinations of trees corresponds with the directions?

Question

A nursery has exactly seven types of trees: 1, 2, 3, 4, 5, 6, and 7. Choose five different types of trees to plant in the yard using the following guidelines:
If type 2 is chosen, type 4 cannot be chosen.
If type 3 is chosen, type 6 must be chosen.
If type 5 is chosen, type 7 must be chosen. 
Which of the following combinations of trees corresponds with the directions?

Quizplus · Accepted Answer

Two of the guidelines apply to this answer choice: If type 2 is chosen, type 4 cannot be chosen and If type 5 is chosen, type 7 must be chosen. This answer choice follows both guidelines.
1, 2, 3, 4, 6 is incorrect. This answer choice breaks the first guideline "If type 2 is chose, type 4 cannot be chosen."
1, 3, 4, 5, 6 is incorrect. This answer choice breaks the third guideline "If type 5 is chosen, type 7 must be chosen."
1, 2, 3, 5, 7 is incorrect. This answer choice breaks the second guideline "If type 3 is chosen, type 6 must be chosen."

A Nursery Has Exactly Seven Types of Trees: 1, 2