Is the largest of 7 consecutive numbers odd?
(1) The product of the seven numbers is zero.
(2) The sum of the seven numbers is zero.
(a)Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
(b)Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
(c)Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.
(d)Either statement (...)
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Data Sufficiency

Quantitative question, data sufficiency GMAT: Is the largest of 7 consecutive numbers odd?
19 de julio de 2018, por hurtado claudio 
Exercises GMAT data sufficiency: 990 people went to the GMAT exam, how many boys didn’t pass the test?
19 de julio de 2018, por hurtado claudio990 people went to the GMAT exam, how many boys didn’t pass the test?
(1) 321 girls didn’t pass the test, which is the number of boys that did.
(2) One fifth of the people that went to the GMAT exam were boys who eventually didn’tpass the test.
(a)Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
(b)Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
(c)Statements (1) and (2) TAKEN TOGETHER are (...) 
QUANTITATIVE QUESTION gmat data sufficiency: Is there an intersection between the line (Y = aX  b) and the parabola (Y = X2 + b)?
19 de julio de 2018, por hurtado claudioIs there an intersection between the line (Y = aX  b) and the parabola
(Y = X2 + b)?
(1) a < 0.
(2) 0 > b.
(a)Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
(b)Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
(c)Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.
(d)Either statement BY ITSELF is (...) 
GMAT QUESTION, data Sufficiency: Is the intersection of the two lines: (x + y = 8) and (4y – 4x = 16) inside the circle: x2 + y2 = r2?
19 de julio de 2018, por hurtado claudioIs the intersection of the two lines: (x + y = 8) and (4y – 4x = 16) inside the circle: x2 + y2 = r2?
(1) r = 81.
(2) The center of the circle is at the coordinate (99, 99).
(a)Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
(b)Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
(c)Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY (...) 
Data Sufficiency GMAT, exercises: If X and Y are positive integers, is X greater than Y?
19 de julio de 2018, por hurtado claudioIf X and Y are positive integers, is X greater than Y?
(1) X > 2.
(2) Y < 3.
(a)Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
(b)Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
(c)Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.
(d)Either statement BY ITSELF is sufficient to answer the question. (...) 
GMAT Exercises Data Sufficiency: Resolved If X and Y are positive integers, is X greater than Y?
19 de julio de 2018, por hurtado claudioIf X and Y are positive integers, is X greater than Y?
(1) X > Y – 2.
(2) X > 2.
(a)Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.
(b)Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.
(c)Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.
(d)Either statement BY ITSELF is sufficient to answer the question. (...) 
GMAT Data Sufficiency, If x is w% of y% of z, what percent of y is x?
22 de enero de 2017, por hurtado claudioIf x is w% of y% of z, what percent of y is x?
(1) wz = 5000
(2) w = 2500 and z = 2
The statement tells us that:
X = (w / 100) * (y / 100) * z, and asks us what percentage is x of y?
In the given relationship it is sufficient to know the value of the product wz.
Then each one by itself.
Correct answer D
If x is w% of y% of z, what percent of y is x?
(1) wz = 5000
(2) w = 2500 and z = 2
El enunciado nos indica que:
x = (w/100) * (y/100) * z, y nos pregunta que porcentaje es x de (...) 
which is the highest value that can take  23  5y  ?
20 August 2016, by hurtado claudioclaudio hurtado maturana original creation coach GMAT MATH, MATH GRE, SAT MATH

In the xyplane, what is the yintercepted of line L?
19 de enero de 2016, por hurtado claudioIn the xyplane, what is the yintercepted of line L?
(1) The slope of line L is 3 times its yintercept.
(2) The xintercept of line L is 1/3
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Remainder If n is a positive integer greater than 16, is n a prime number? includes the answer to the question developed step by step.
12 de octubre de 2014, por hurtado claudioIf n is a positive integer greater than 16, is n a prime number?
(1) n is odd
(2) The remainder when n is divided by 3 is 1, and the remainder when n is divided by 7 is 1.