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If x ≠ 0, what is the value of x?
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28 Aug 2017, 02:27
Question Stats:
38% (01:40) correct 62% (01:34) wrong based on 140 sessions
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Re: If x ≠ 0, what is the value of x?
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28 Aug 2017, 02:35
Bunuel wrote: Fresh GMAT Club Tests' Challenge Question: What is the value of x? (1) The distance between x and x on the number line is equal to the distance between x^2 and x^2 (2) x ? x = 0, where ? represents one of the three operations addition, subtraction, or multiplication (1) x can take 0 or 1 or 1 in all the cases the distance between x and x on the number line is equal to the distance between x^2 and x^2 not sufficient (2) if x = 0 then ? represents any one of the operations if x=1 then ? represents addition if x=1 then ? represent subtraction not sufficient on combining also not sufficient E
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Re: If x ≠ 0, what is the value of x?
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28 Aug 2017, 02:50
Bunuel wrote: Fresh GMAT Club Tests' Challenge Question: If x ≠ 0, what is the value of x? (1) The distance between x and x on the number line is equal to the distance between x^2 and x^2 (2) x ? x = 0, where ? represents one of the three operations addition, subtraction, or multiplication Stmnt 1) x = 1 or 1 . Insuff Stmnt 2) if addition, x=1 if subtraction x=1 Hence E



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Re: If x ≠ 0, what is the value of x?
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29 Aug 2017, 01:53
For the first statement, distance between x and x is same as x^2 and x^2 let say x=1, 1, distance is 2 and 1^2 and 1^2, distance is 2 (GMAT number property, x^2= 1(x)^2 so 1^2= 1) insuff.
For the second statement, x? x = 0, ? represent + /  / x < does that mean only represent one of them, or all three? then x must be ve? xx= 0 I actually don't really understand the second statement. someone please explain, thank you



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If x ≠ 0, what is the value of x?
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29 Aug 2017, 01:56
pclawong wrote: For the first statement, distance between x and x is same as x^2 and x^2 let say x=1, 1, distance is 2 and 1^2 and 1^2, distance is 2 (GMAT number property, x^2= 1(x)^2 so 1^2= 1) insuff.
For the second statement, x? x = 0, ? represent + /  / x < does that mean only represent one of them, or all three? then x must be ve? xx= 0 I actually don't really understand the second statement. someone please explain, thank you x? x = 0 ? can represent any of the three (+, , *) basis the value of x if u consider x as 1 then ? is  if u consider x as 1 then ? is + if u consider x as 0 then ? can take any of ,+,*
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Re: If x ≠ 0, what is the value of x?
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29 Aug 2017, 02:03
Luckisnoexcuse wrote: pclawong wrote: For the first statement, distance between x and x is same as x^2 and x^2 let say x=1, 1, distance is 2 and 1^2 and 1^2, distance is 2 (GMAT number property, x^2= 1(x)^2 so 1^2= 1) insuff.
For the second statement, x? x = 0, ? represent + /  / x < does that mean only represent one of them, or all three? then x must be ve? xx= 0 I actually don't really understand the second statement. someone please explain, thank you x? x = 0 ? can represent any of the three (+, , *) basis the value of x if u consider x as 1 then ? is  if u consider x as 1 then ? is + if u consider x as 0 then ? can take any of ,+,* so, again, x can be 1 or x can be 1? insuff.. ?



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Re: If x ≠ 0, what is the value of x?
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29 Aug 2017, 02:08
pclawong wrote: Luckisnoexcuse wrote: pclawong wrote: For the first statement, distance between x and x is same as x^2 and x^2 let say x=1, 1, distance is 2 and 1^2 and 1^2, distance is 2 (GMAT number property, x^2= 1(x)^2 so 1^2= 1) insuff.
For the second statement, x? x = 0, ? represent + /  / x < does that mean only represent one of them, or all three? then x must be ve? xx= 0 I actually don't really understand the second statement. someone please explain, thank you x? x = 0 ? can represent any of the three (+, , *) basis the value of x if u consider x as 1 then ? is  if u consider x as 1 then ? is + if u consider x as 0 then ? can take any of ,+,* so, again, x can be 1 or x can be 1? insuff.. ? Correct and hence E
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Re: If x ≠ 0, what is the value of x?
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24 Dec 2018, 03:12



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Re: If x ≠ 0, what is the value of x?
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25 Dec 2018, 22:31
Bunuel wrote: Fresh GMAT Club Tests' Challenge Question: If x ≠ 0, what is the value of x? (1) The distance between x and x on the number line is equal to the distance between x^2 and x^2 (2) x ? x = 0, where ? represents one of the three operations addition, subtraction, or multiplication Statement 1) x can be 1 or 1. Since, the for x=1, and x=1, the distance between x and x on the number line is equal to the distance between x^2 and x^2. Insufficient. Statement 2) For addition, x+X=0, x=1 or 0 but x ≠ 0, so x=1, For subtraction, xx=0, x=1. For multiplication, x*x=0, x= 0. SO, x can be 1 or 1. Insufficient. (1)+(2), x can be 1 or 1. Insufficient. Option E is the correct answer.
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Re: If x ≠ 0, what is the value of x?
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25 Dec 2018, 22:55
Bunuel wrote: Fresh GMAT Club Tests' Challenge Question: If x ≠ 0, what is the value of x? (1) The distance between x and x on the number line is equal to the distance between x^2 and x^2 (2) x ? x = 0, where ? represents one of the three operations addition, subtraction, or multiplication Given, x ≠ 0 DS Question : what is the value of x? Statement (1): Since distance between x and x on the number line is equal to the distance between x^2 and x^2. Means x and x^2 must have same mod value. This is possible only if x =1,1,0. Since , x ≠ 0 So, x= 1,1 NOT SUFFICIENTStatement (2): x ? x = 0, where ? can be +, , * If ? = + x+x = 0 x= x So, x<0 If ? =  xx = 0 x= x So, x>0 If ? = * x*x = 0 So, x=0 Since it is given that x ≠ 0. So ?=* is not possible. So overall either x<0 or x>0. NOT SUFFICIENTCombined statement : x= 1,1 NOT SUFFICIENTAnswer E
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Re: If x ≠ 0, what is the value of x?
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28 Dec 2018, 06:54
Luckisnoexcuse wrote: Bunuel wrote: Fresh GMAT Club Tests' Challenge Question: What is the value of x? (1) The distance between x and x on the number line is equal to the distance between x^2 and x^2 (2) x ? x = 0, where ? represents one of the three operations addition, subtraction, or multiplication (1) x can take 0 or 1 or 1 in all the cases the distance between x and x on the number line is equal to the distance between x^2 and x^2 not sufficient (2) if x = 0 then ? represents any one of the operations if x=1 then ? represents addition if x=1 then ? represent subtraction not sufficient on combining also not sufficient E x cannot be equal to 0. It is mentioned in the question stem.




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