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If x/11p is an odd prime number, where x is a positive integer and p i

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If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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New post 19 May 2015, 09:18
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If x/(11p) is an odd prime number, where x is a positive integer and p is a prime number, what is the least value of x?


(A) 22
(B) 33
(C) 44
(D) 66
(E) 99

M31-16

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Re: If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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New post 19 May 2015, 09:36
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3
x/(11p) = odd prime number
x = odd prime number * 11p
Least value of x = Lowest odd prime number * 11 * Lowest value of p
= 3 * 11* 2 = 66

Answer D

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Re: If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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New post 19 May 2015, 09:38
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x/11p must be equal to 3 (odd prime)

so x=33p to get minimum value of x p must be smallest prime number so p=2

x=66

so answer must be (D) 66
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Re: If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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New post 20 May 2015, 01:56
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Bunuel wrote:
If x/(11p) is an odd prime number, where x is a positive integer and p is a prime number, what is the least value of x?


(A) 22
(B) 33
(C) 44
(D) 66
(E) 99


as given n= x/11p = odd prime number; where x positive int and p prime.
so x must be a multiple of (11p) so it can have values as 22 33 44 55 66

least value of x = 66 which will give x/11p as odd prime number. when p=2

Ans: D
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Re: If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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New post 25 May 2015, 07:02
Bunuel wrote:
If x/(11p) is an odd prime number, where x is a positive integer and p is a prime number, what is the least value of x?


(A) 22
(B) 33
(C) 44
(D) 66
(E) 99


OFFICIAL SOLUTION:

x/(11p) = (odd prime);

x = 11p*(odd prime).

We need to minimize x, so we should minimize p and (odd prime). Since p is a prime, then the least value of p is 2 and the least possible value of (odd prime) is 3. Therefore \(x_{min}=11p*(odd \ prime)=11*2*3=66\).

Answer: D.
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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New post 08 May 2016, 14:50
just plug in smallest prime number value for p which is 2
11p = 22
x/11p becomes least odd prime number for a value when x/11p =3
x = 66
correct answer - D
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Re: If x/11p is an odd prime number, where x is a positive integer and p i  [#permalink]

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Re: If x/11p is an odd prime number, where x is a positive integer and p i &nbs [#permalink] 01 Sep 2018, 08:31
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