Answer {E}divineacclivity wrote: Statement 2: "Each element in Set B is divisible by exactly two factors."
Does the above statement refer to prime numbers i.e. divisible by 1 & the (prime) number itself? So, could we say that statement 2 is talking about all prime numbers except 1?
thanks in advance.
What you should get out of this:pradeepkaushal9518 wrote:set A consists of all positive integers less than 100.
As another instructor has noted above, "the first four" is meaningless here. So let's assume this means "the four smallest numbers".set B consists of 10 integers the first four of which are 2,3,5 and 7
The median of set A is a constant. What is it? We don't care. It's a constant..what is the difference between the median of set A and the range of set B ?
Doesn't tell us the maximum.1.all numbers in set B are prime numbers.
Same as statement 1. Doesn't tell us the maximum.2.each element in set B is divisible by exactly two factors.
lunarpower wrote:I received a private message about this thread.
Lots of you guys are doing WAY too much work here.
You should not have to do any calculations in this problem. None.
Remember, it's data sufficiency! If you know there's a single answer, then you're done. Trying to find that answer is a complete waste of time, unless you are uncertain about whether there's more than one possibility.
What you should get out of this:pradeepkaushal9518 wrote:set A consists of all positive integers less than 100.
This is a definite set. Nothing is unknown. It's a fixed set of numbers.
Therefore, everything about it is constant.
As another instructor has noted above, "the first four" is meaningless here. So let's assume this means "the four smallest numbers".set B consists of 10 integers the first four of which are 2,3,5 and 7
In this case, we have 2, 3, 5, 7, __, __, __, __, __, __, and we have no clue what's in the blanks.
The median of set A is a constant. What is it? We don't care. It's a constant..what is the difference between the median of set A and the range of set B ?
Assuming the interpretation above, the minimum value in set B is also a constant (it's 2).
So, the issue here boils down to, What's the maximum value in set B?
That's it.
Doesn't tell us the maximum.1.all numbers in set B are prime numbers.
Same as statement 1. Doesn't tell us the maximum.2.each element in set B is divisible by exactly two factors.
Don't do more work than you have to. (If you actually calculated the median of set A -- or if you plugged in any specific numbers, at all, whatsoever -- I'm looking at you.)
You may be wasting less time... but you're still wasting time.wakk0 wrote:But what if I calculated the median *very* quickly? I suppose I still have to bow my head in shame? :D
Well, the OA would be the same with either interpretation, but it seems to be that set A consists of all the integers from 1 to 99 inclusive, and that none are repeated.vinni.k wrote:Hi,
Eventhough i got this question easily by focusing on Set B, I still have doubt on set A.
The question stem says that "Set A consists of all positive integers < 100 "
My doubt:- Are these all positive integers different ? (1,2,3,,,,98,99) or I can repeat some numbers (1,1,1,1,5,5..90)---> All 99 numbers ?
What are the right numbers ? But, if i can use both the sets, then the median will be also different.
Please enlighten me.
Thanks
