Sum of positive integers x and y is 72. What is xy?
a. x = y + 1
b. x and y have same tens digit
OA is D, whereas I feel it should be A.
Consider II statement,
(X,Y) / (Y,X) can be (33,39) (34,38) (35,37) (36,36)
So how can we deduce a definite answer? We have 4 different values of X and Y. Please correct me if I am wrong.
Sum of positive integers x and y is 72
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Whats the Source?
How on earth it is D?
be coz if we use (1), we get y=71/2=Non Integer
hence IMO E
How on earth it is D?
be coz if we use (1), we get y=71/2=Non Integer
hence IMO E
Many of the great achievements of the world were accomplished by tired and discouraged men who kept on working.
I am not sure how the answer is D. Anyway, I realised that I was reading the question incorrectly. The answer should be E.
Source is
https://www.beatthegmat.com/answers-to-9 ... 35974.html
Source is
https://www.beatthegmat.com/answers-to-9 ... 35974.html
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rajbirdadhiyala wrote:Sum of positive integers x and y is 72. What is xy?
a. x = y + 1
b. x and y have same tens digit
OA is D, whereas I feel it should be A.
Consider II statement,
(X,Y) / (Y,X) can be (33,39) (34,38) (35,37) (36,36)
So how can we deduce a definite answer? We have 4 different values of X and Y. Please correct me if I am wrong.
There is no way this question could be correct.
question says x and y are positive integers, however if you look ta statement I, you will realize that x and y are both consecutive integers, this means
if x is odd, then y will be even
if y is odd, then x will be even
Odd + even = odd
therefore, no way on earth x+y = 72. This simply shows that either the question is wrong or something is missing in the statements.
If look ta statement II, we know that both x and y are 2 digit integers, whose tens digit is same.
34+38, 33+39
Insufficient.
probably the qn may be :rajbirdadhiyala wrote:Sum of positive integers x and y is 72. What is xy?
a. x = y + 1
b. x and y have same tens digit
OA is D, whereas I feel it should be A.
Consider II statement,
(X,Y) / (Y,X) can be (33,39) (34,38) (35,37) (36,36)
So how can we deduce a definite answer? We have 4 different values of X and Y. Please correct me if I am wrong.
Product of positive integers x and y is 72. What is x+y?
a. x = y + 1
b. x and y have same tens digit
then try.
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real2008 wrote:
probably the qn may be :
Product of positive integers x and y is 72. What is x+y?
a. x = y + 1
b. x and y have same tens digit
then try.
If you consider this question.
The statement I will be sufficient.
Positive integers, x=y+1, consecutive integers. xy=72
only option is 8*9
Sufficient.
Statement II
this will be a default meaning case does not exist. 72 = 8*9, 12*6, 72*1, etc. but none of the two digits will ever have same tens digit. Hence, this contradicts the statement.