set A consists of all positive integers less than 100.set B consists of 10 integers the first four of which are 2,3,5 and 7.what is the difference between the median of set A and the range of set B ?
1.all numbers in set B are prime numbers.
2.each element in set B is divisible by exactly two factors.
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pradeepkaushal9518
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sirisha.g
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range of numbers in set A is 98(since there are all positive numbers below 100). for set B median is sum of (5th and 6th term) /2
Now consider statement 1) all numbers are prime numbers=> you can have any number for your 5th and 6th term. there is a possibilty of not getting unique value always.
2) same as statement 1
together also not sufficient
Now consider statement 1) all numbers are prime numbers=> you can have any number for your 5th and 6th term. there is a possibilty of not getting unique value always.
2) same as statement 1
together also not sufficient
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gmatmachoman
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Set a: { 1 ---------- 99}
Median :50
set b : { 2,3,5,7,11,13,17,19,23,29}
Median : 12
Difference : 50-12 = 38
Pick D
@sirisha...Buddy u misread the question....
All the best for ur exam...
Median :50
set b : { 2,3,5,7,11,13,17,19,23,29}
Median : 12
Difference : 50-12 = 38
Pick D
@sirisha...Buddy u misread the question....
All the best for ur exam...
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sirisha.g
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Hi gmatmachoman,
U are right i misread the question(i have been doing mistakes like these off late
really scarred) but even then i pick E because
Set A: median =50
set B: case1 { 2,3,5,7,11,13,17,19,23,29} => range =27
case2: {2,3,5,7,11,11,13,13,17,17}=> range =15
btw, gmatmachoman it is not median of set B. it is range of set b
U are right i misread the question(i have been doing mistakes like these off late
really scarred) but even then i pick E becauseSet A: median =50
set B: case1 { 2,3,5,7,11,13,17,19,23,29} => range =27
case2: {2,3,5,7,11,11,13,13,17,17}=> range =15
btw, gmatmachoman it is not median of set B. it is range of set b
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pradeepkaushal9518
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srisha if u were wrong i never ask u to elaborate rather i will ask to rethink so u have chosen correct option but i just want the explanation
govi u also got veritas yaar comm'on just check it out
govi u also got veritas yaar comm'on just check it out
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debmalya_dutta
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Statement 2 just says the first 4 prime numbers are 2,3,5,7...It doesnt say that B contains the list of first 10 prime numbers...sirisha.g wrote:Hi gmatmachoman,
U are right i misread the question(i have been doing mistakes like these off late
Set A: median =50
set B: case1 { 2,3,5,7,11,13,17,19,23,29} => range =27
case2: {2,3,5,7,11,11,13,13,17,17}=> range =15
btw, gmatmachoman it is not median of set B. it is range of set b
So .... B could contain even 113 hoping that 113 ... So...Statement 2 is open ended..
So,,range of B cannot be determined from this
Statement 2 is insufficient
Statement 2 tells me that the median is 50 which is fine...
But , I do not get any information about the range of B from either statements to calculate the difference between the median of A and range of B
@Deb
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thirst4edu
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IMO Epradeepkaushal9518 wrote:set A consists of all positive integers less than 100.set B consists of 10 integers the first four of which are 2,3,5 and 7.what is the difference between the median of set A and the range of set B ?
1.all numbers in set B are prime numbers.
2.each element in set B is divisible by exactly two factors.
Both statements give same information that set B contains prime numbers only.
So answer either have to be D or E
We cannot find out range of set B using given information, since we dont know if set has first 10 prime numbers or any random prime numbers (apart from those 4 given in question stem).
So Answer is E.
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Ian Stewart
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This is not a well-written question. The question talks about "the first four" elements in a set. Well, sets are not ordered; the set {15,3,5,2,7,1} is the same set as the set {1,2,3,5,7,15}. If I talk about the "first four" elements of the set {15,3,5,2,7,1}, am I referring to the four smallest elements (1, 2, 3, and 5), or the first four elements from the left (15, 3, 5, 2)? There is no correct interpretation here. Talking about the "first four" elements in a set is meaningless, and you will never see that phrase on the GMAT. If a list is in order, it's a sequence, not a set.pradeepkaushal9518 wrote:set A consists of all positive integers less than 100.set B consists of 10 integers the first four of which are 2,3,5 and 7.
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Even though I don't like the wording of the question, the answer is certainly E no matter how you interpret it. All you learn from the two statements is that the elements of set B are prime. There's no way to know what the range of set B is, since we don't know the largest element of B; it could be any prime 7 or greater.reply2spg wrote:Ans can never be E for this question. I agree with Govi abt D, and if not D then should be A, but not E.
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reply2spg
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I see now, you are right, I misread the question. I was thinking that first 10 prime numbers. Sorry about that and thanks for pouring in.
Ian Stewart wrote:Even though I don't like the wording of the question, the answer is certainly E no matter how you interpret it. All you learn from the two statements is that the elements of set B are prime. There's no way to know what the range of set B is, since we don't know the largest element of B; it could be any prime 7 or greater.reply2spg wrote:Ans can never be E for this question. I agree with Govi abt D, and if not D then should be A, but not E.
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divineacclivity
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Statement 2: "Each element in Set B is divisible by exactly two factors."Ian Stewart wrote:Even though I don't like the wording of the question, the answer is certainly E no matter how you interpret it. All you learn from the two statements is that the elements of set B are prime. There's no way to know what the range of set B is, since we don't know the largest element of B; it could be any prime 7 or greater.reply2spg wrote:Ans can never be E for this question. I agree with Govi abt D, and if not D then should be A, but not E.
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.
