What is the minimum number of groups that must be evaluated after the teachers?

Zia on May 30 at 10:27PM


Can someone please explain the right answer?

1 Reply

Ben on May 31 at 02:07AM

Hi Zia305, thanks for the question.

After we examine the rules and combine them. We find that there are two options for the order between J, P, and L.

J - P - L or L - P - J

As for the rest of the sequence.

T is before M which is before L

T is also before N and P, which are directly adjacent to each other.

This means that M, L, N, and P must always come after the teachers at a minimum. And it is possible for J but not necessary. This is why the answer is four.

I hope this helps. Please let me know if you have any other questions.