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05 Feb 2024, 10:37
Kudos
Bookmarks
A1 is tied to E2.
A2 is tied to E1.
If either of those two groups are chosen, 2 choices, 2 more can be selected from the 6 people in the nonvowel rows:
6!/4!2! = 15
For a total of 30 ways
Of course, selecting one of the vowel groups above doesn't preclude selecting the remaining two people from the other vowel group, which is the same as saying how many ways to select 4 people from 4 people, or:
1 way
Finally, 4 people can be chosen solely from the consonant groups of 6 people:
6!/2!4! = 15 ways
The total choices being:
30+1+15 = 46
Posted from my mobile device
A2 is tied to E1.
If either of those two groups are chosen, 2 choices, 2 more can be selected from the 6 people in the nonvowel rows:
6!/4!2! = 15
For a total of 30 ways
Of course, selecting one of the vowel groups above doesn't preclude selecting the remaining two people from the other vowel group, which is the same as saying how many ways to select 4 people from 4 people, or:
1 way
Finally, 4 people can be chosen solely from the consonant groups of 6 people:
6!/2!4! = 15 ways
The total choices being:
30+1+15 = 46
Posted from my mobile device
16 Feb 2025, 08:38
Kudos
Bookmarks
Automated notice from GMAT Club BumpBot:
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
