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Manager
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Joined: 09 Jun 2010
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help [#permalink]

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New post 30 Jun 2010, 06:47
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The product p of two prime no is between 9 and 55 . If one of the prime numbers is greater than 2 but less than 6 and other is greater than 13 but less than 35 then p=
15
33
34
46
51

can anyone explain this with datils start from the basic

thanks
[Reveal] Spoiler: OA

Kudos [?]: 27 [1], given: 17

Manager
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Joined: 07 Oct 2006
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Location: India
Re: help [#permalink]

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New post 30 Jun 2010, 07:31
Let me try to explain this one. I hope you are clear about the prime numbers.
Now, lets take 2 numbers as a and b respectively. Then, as per the statement
9<p<55
2<a<6
13<b<35
Now, a can have values, 3 and 5
b can have values 17, 19, 23...
Now since as per the formula p should be < 55.
Then, only possible values for a and b are 3 and 17 which will give (3*7) = 51.
All other values would be greater than 55. Hence, the answer.
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Re: help [#permalink]

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New post 30 Jun 2010, 07:34
Select the least value of prime numbers within the range i.e. 3 and 17.
p = 3 * 17 = 51

Hence the correct answer choice is E.

Thank You.

Thanks,
Akhil M.Parekh

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Re: help [#permalink]

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New post 30 Jun 2010, 09:14
thank you very much
now I got it

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Re: help [#permalink]

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New post 17 Sep 2017, 08:35
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Re: help   [#permalink] 17 Sep 2017, 08:35
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