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## #16 - Global

• PowerScore Staff
• Posts: 8869
• Joined: Feb 02, 2011
#91414
Complete Question Explanation

The correct answer choice is (A).

This explanation is still in progress. Please post any questions below!
agalla
• Posts: 1
• Joined: Aug 22, 2022
#96830
I am curious about answer A - "the first irrigated crop grown is not potatoes." How is this answer achieved? I got all of the other answers correct and compared my diagrams/templates, but I chose D. Please let me know how you diagramed this problem.
atierney
• PowerScore Staff
• Posts: 215
• Joined: Jul 06, 2021
#96857
Hello,

On a global must-be-true question, the first step is to look for any answer choices that can be eliminated via prior work, or hit on global inferences already made. If the latter, then the correct answer is relatively easy to spot. However, here, we don't have that, and so the next step is to "test" the answer choices.

For A, if it were true that potatoes were the first irrigated crop, then we would have place potatoes in the third spot, because when potatoes are placed in any other spot, they must be fertilized. Now, if in the third spot lies the first irrigated crop, then that means the first two crops are fertilized . This violates the first rule (no consecutive crops can be fertilized). Thus A is the correct answer. The First Irrigated crop cannot be potatoes.

Let me know if you have any questions on this.
• Posts: 4
• Joined: Jun 02, 2023
#102083
Hi,
Even I selected D. I am not very sure how A is the right answer choice here mainly because, If P comes 1, then we can have the following block without defacing any rules:
PF, SI, OF, VI, RI/F. This does not violate any rules. Clueless..