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If x – 6 = 3, what is the value of x?
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06 Dec 2016, 00:47
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Re: If x – 6 = 3, what is the value of x?
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09 Jul 2017, 00:18
Madhavi1990 wrote: so answer is A was my first thought.
x6 = 3
so obv x = 9 or  3
1) x dvble 9 : so I substituted
96 = 3; also 27/9  6 as both are dvble by 9. so X i thought could be either 27 or 9 . Insuff
2) x dvble by 3.
x6 =3 I put x as 9 and 18 > 18/3  6 and 9/3  6 . so x again had two values
Answer is A. can you explain what is wrong above?
Also, based on reading the explanations above, it appears we consider x as dvble by something when it leaves behind a remainder one (that is why 9/3 = 3 and 3/3 = 1 hence insufficient; while 9/9 = 1 was seen as sufficient. But why can't we consider 27/9 here?)Would appreciate any reply to this!
Solving Question stem gives:
x6 = 3 x6=3 OR x6=3 x=9 OR x=3 So, possible value of X can be 9 or 3, any condition which makes one value as certain will be true.
1. Div by 9 means X=9 it can't be 3  So, it is sufficient 2. Div by 3 means X=9 or X=3  So, it is insufficient
Answer is A




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Re: If x – 6 = 3, what is the value of x?
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06 Dec 2016, 02:46
Bunuel wrote: If x – 6 = 3, what is the value of x?
(1) x is divisible by 9 (2) x is divisible by 3 from stem x is either = 9 or 3 from 1 x = 9 ... suff from 2 x= 9 or 3 .. insuff A



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Re: If x – 6 = 3, what is the value of x?
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06 Dec 2016, 04:13
I don't know whether this is even 600 level. Given that x – 6 = 3. Removing modulus, We will get two equation, x6=3 or x6=3. Solving the two equation we will two values of X. i.e. 9 or 3. Option 1: x is divisible by 9. Sufficient. Option 2: x is divisible by 3. Both the values 3 and 9 are divisible by 3. Not sufficient.
Hence answer is A.



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Re: If x – 6 = 3, what is the value of x?
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07 Dec 2016, 12:03
Bunuel wrote: If x – 6 = 3, what is the value of x?
(1) x is divisible by 9 (2) x is divisible by 3 From stmt 1 X=9 only  sufficient From Stmt2 X=3 or 9  not Sufficient Ans A



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Re: If x – 6 = 3, what is the value of x?
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09 Jul 2017, 00:13
so answer is A was my first thought.
x6 = 3
so obv x = 9 or  3
1) x dvble 9 : so I substituted
96 = 3; also 27/9  6 as both are dvble by 9. so X i thought could be either 27 or 9 . Insuff
2) x dvble by 3.
x6 =3 I put x as 9 and 18 > 18/3  6 and 9/3  6 . so x again had two values
Answer is A. can you explain what is wrong above?
Also, based on reading the explanations above, it appears we consider x as dvble by something when it leaves behind a remainder one (that is why 9/3 = 3 and 3/3 = 1 hence insufficient; while 9/9 = 1 was seen as sufficient. But why can't we consider 27/9 here?)Would appreciate any reply to this!



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Posts: 47206

Re: If x – 6 = 3, what is the value of x?
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09 Jul 2017, 02:04
Madhavi1990 wrote: so answer is A was my first thought.
x6 = 3
so obv x = 9 or  3
1) x dvble 9 : so I substituted
96 = 3; also 27/9  6 as both are dvble by 9. so X i thought could be either 27 or 9 . Insuff
2) x dvble by 3.
x6 =3 I put x as 9 and 18 > 18/3  6 and 9/3  6 . so x again had two values
Answer is A. can you explain what is wrong above?
Also, based on reading the explanations above, it appears we consider x as dvble by something when it leaves behind a remainder one (that is why 9/3 = 3 and 3/3 = 1 hence insufficient; while 9/9 = 1 was seen as sufficient. But why can't we consider 27/9 here?)Would appreciate any reply to this! The logic there is not right. If x – 6 = 3, what is the value of x?x – 6 = 3 means that x is either 9 or 3. So, the question asks to find out which one of them is x. (1) x is divisible by 9. x must be 9 because out of 9 and 3 only 9 is divisible by 9. Sufficient. (2) x is divisible by 3. Both 9 and 3 are divisible by 3, so we cannot say whether x is 9 or 3. Not sufficient. Answer: A.
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Re: If x – 6 = 3, what is the value of x?
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01 Sep 2017, 14:35
Bunuel wrote: If x – 6 = 3, what is the value of x?
(1) x is divisible by 9 (2) x is divisible by 3 two ways to approach abs. value Positive 1. x6 = 3 Negative  lx 6l =3 x+6 =3 x=3 x= 3 A




Re: If x – 6 = 3, what is the value of x? &nbs
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01 Sep 2017, 14:35






