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The ques is asking Is .n68<1/n and not for what value of n.

It should be E. Please correct me if i am wrong.

I go with B. The statement only works with B and the question is asking if we have enough information to answer the question. Since with B we know that n=1 we plug that back into the question and find that 0.168 is indeed less than 1 and sufficient to answer the question. Hope this helps.

I go with E.
Putting 1 & 4 in eqn 1 gives two different answers.
similarly, putting 1 & 4 in eqn 2 gives 2 diff answeres.
so It can't be answers even combining them together. _________________

If A equals success, then the formula is: A = X + Y + Z, X is work. Y is play. Z is keep your mouth shut.
Albert Einstein

if n=0 the expression goes to infinity which is indeterminate.

For this question we should infer that n is a number from 1 to 9. The fact that 1/n is included in the stem has precluded the possibility of n=0. For GMAT remember if something appears in the denominator, it is non zero. However, if you see something like n*0.n68<1, you cannot devide both sides by n while assuming n is non-zero. _________________

Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.

In fact, in the decimal represtentation of a number, n is a positive integer from 0 to 9.

If the second statement is true, n=1. For n=0 the expression is nonsense, because you cannot divide by 0.

Note that in evaluating the sufficiency of the first statement you have to consider the case n=0, because n<5 does not exclude this possibility. Whereas, in evaluating the sufficiency of the second statement, you haven't to consider n=0, because for n=0 the hypothesis you should assume to be true would not be verified.

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