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# IR numerical algorithm flowchart problem

Author Message
Magoosh GMAT Instructor
Joined: 28 Dec 2011
Posts: 4035
Followers: 1416

Kudos [?]: 6765 [2] , given: 84

IR numerical algorithm flowchart problem [#permalink]

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10 Jul 2013, 10:55
2
KUDOS
Expert's post
Attachment:

flowchart.jpg [ 48.32 KiB | Viewed 4906 times ]

A value p = 50 is initially entered. When S first has a value of S = 10, p has a value of _____________.
51, 53, 57, 59, 61

[Reveal] Spoiler:
OA: 59

For a discussion of this type of question, another question on this same flowchart, and complete explanations of the two questions, see:
http://magoosh.com/gmat/2013/gmat-ir-nu ... -problems/
Mike
_________________

Mike McGarry
Magoosh Test Prep

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Manager
Joined: 09 Jul 2012
Posts: 59
Followers: 0

Kudos [?]: 15 [0], given: 29

Re: IR numerical algorithm flowchart problem [#permalink]

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17 Jul 2013, 04:26
I like this type of IR question because is not hard - that is, if a person keeps track of their work. This is my way of doing the problem:

S=12 (given)
P=50 (start)

as I mentally follow the chart, each time there is a change I add a number to P in order not to forget the value. So,

P(1)=51
P(2)=53
S(1)=11
P(2)=55
P(3)=57
P(4)=59
S(2)=10 (STOP)

And since this is IR, there are parts of the algorithm that are "useless" meaning that they are just there to confuse you.

So the correct answer is P=59

Thanks for the practice problem Mike
Re: IR numerical algorithm flowchart problem   [#permalink] 17 Jul 2013, 04:26
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