Bumping for review and further discussion*. Get a kudos point for an alternative
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Question: A greater than 2/3? or A greater than 0.6666?
This is again a YES or NO, question.
Getting either will be fine for the solution.
(1) a+b>14 or a+b>=15
The possible ways for a and b how we can get this is :
these are the only possible combinations as anything less than 5 will make the other 10, and well anything more then 9 will result in a 10.
anyways, from the above possible values we can see that each is >=0.6666 =>Sufficient
Here, the main digit that we are concerned about is a as that decides if the no is >=0.666 or not
even if b=c=9, but a=1, it will be less then 0.6666
or if a=b=c=9 the in that case it will be greater.
Anyway we need some information of A => Not Sufficient.
Ans : A
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