The notion to take care of ALL the possible scenarios is paramount as well as correct. However, in this case, when you have selected
3 !V and 1 V, you are going against the said-rule:
If a person is selected from a row, which is marked by a vowel, then we need to select another person of opposite gender, from another row, which is also a vowel.
Your mind has decided to select 1V
at the end in the hope
to cover all the possible cases, resulting in the extra count and
going against the rule.
Because whether you select 1V at the beginning or at the end,
the crux of the matter is 1V is already included.
Hence, the other V (
by default) should be included.[/quote]
hi Xylan
The rule that opposite gender has to be selected is not applicable for non-vowels.[/quote]
AKY13 I admire your tenacity to get it right conceptually!
I hope to do
justice to your confusion with my explanation.
NO where in the
resolution we are denying the fact that:
1) the rule is applicable ONLY for vowels.
2) the rule need not be applicable for non-vowels.
The Conditional-statement:If a person is selected from a row, which is a vowel, then we need to select another person of the opposite gender from another row, which is also a vowel
The gist of the above conditional statement:
IF X --------> YIf V is selected --------------> Another V MUST be selected
Let's break down all the possible cases:Case 1: When no person is selected from A or E
• In this case, all four persons are selected from B, C and D
By your convention: All 4 selections from non-vowels(N):
NNNN
Case 2: When one person is selected from either A or E
• The selected person can be either from A or E
• The remaining 2 must be selected from rows, B, C and D
Implication of the above condition on this case:
If V is selected --------------> Another V MUST be selected
NNV ----corrsponds to----> NNVV
NNVV
Case 3: When all 4 are selected from A and E (vowels)
• In this case all the four must be chosen from A and E, according to the given condition.
VVVV
The case of NNNV is
NOT at all
possible because once you have included
V in your
selection-scenario,
you are activating the
if-condition of the conditional statement, resulting in the
then-statement of the conditional statement to bound to be TRUE. Read this part really SLOWLY.
Implication of the above condition on this case:If V is selected --------------> Another V MUST be selected
NNNV ----corrsponds to----> NNNVV
Since the question statement asks us to select
4 persons, the above case is
INVALID.[/quote]
Hi Xylan
Thanks for pointing out a perspective overlooked by me.
However, I am not sure whether it can be assumed that we can't have last selection of vowel.