To answer this kind of question, you have to become fast at drawing scenarios to disprove wrong answers.
There’s no secret to doing this. You need to know the rules, and you need to practice making scenarios. The more you practice drawing correct scenarios, the faster you’ll get.
A is CORRECT. Let’s try it and see what happens.
SU go together. Now, the second rule says one of T or U goes in group 2. So T must go in group 2. Likewise, the first rule says one of P or T must go in group 1. So P goes in group 1.
Q has to go with P (rule 3), so M is the only one left to go in group 3. This doesn’t work, since group 3 needs more sales representatives than group 2.
B-D are unlikely candidates to be correct. They all involve random variables, and they place variables in group 3. It’s easy to place people in group 3, as you need more people in group 3 than group 2.
They’re also all the same answer. SU are interchangeable, since they’re always together. Likewise, M and K are interchangeable, since they have no rules.
This scenario disproves B, C and D:
This diagram disproves E.
This answer is similar to A, but it only forces four people to go in group 1, whereas A forced five people to go there.
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