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IR numerical algorithm flowchart problem

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Magoosh GMAT Instructor
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IR numerical algorithm flowchart problem [#permalink] New post 10 Jul 2013, 09:55
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A value p = 50 is initially entered. When S first has a value of S = 10, p has a value of _____________.
[drop-down menu choices:]
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 :-)
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Mike McGarry
Magoosh Test Prep

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Re: IR numerical algorithm flowchart problem [#permalink] New post 17 Jul 2013, 03:26
I like this type of IR question because is not hard :lol: - 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, 03:26
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