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# Sometimes easy questions may be time killers idue to the

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Director
Joined: 10 Oct 2005
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Sometimes easy questions may be time killers idue to the [#permalink]

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08 Nov 2006, 10:45
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Sometimes easy questions may be time killers idue to the stress on
the test day
Try this

Which of the following is equal to the value of 2^5+2^5+3^5+3^5+3^5

A)5^6
B)13^5
C)2^6+3^6
D)2^7+3^8
E)4^5+9^5

I am sure that the majority of you will get it in 30 secs ))
I got it wrong after 2+ minutes
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Manager
Joined: 04 Oct 2006
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08 Nov 2006, 10:50

2^5 x 2 = 2^6
3^5 x 3 = 3^6

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wall street...bulls, bears, people from connecticut

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Senior Manager
Joined: 20 Feb 2006
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08 Nov 2006, 13:27
Factoring 2^5+2^5+3^5+3^5+3^5 = 2^5(1+1) + 3^5(1+1+1)

= 2^5 *(2) + 3^5 * (3) = 2^6 + 3^6

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Intern
Joined: 08 Nov 2006
Posts: 34

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08 Nov 2006, 13:40
Sometimes easy questions may be time killers idue to the stress on
the test day
Try this

Which of the following is equal to the value of 2^5+2^5+3^5+3^5+3^5

A)5^6
B)13^5
C)2^6+3^6
D)2^7+3^8
E)4^5+9^5

-------------------------------------------------------------------------------

2^5+2^5+3^5+3^5+3^5 = 2^1(2^5) + 3^1(3^5) = 2^6 + 3^6

I got this one but I know what you mean with the stress and easy questions. I have another post where I add 33 + 34 and get 77. And I added that over and over and got the same thing. The time is the killer, taking a step back helps on so many questions, but there just isn't time.

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SVP
Joined: 24 Aug 2006
Posts: 2130

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08 Nov 2006, 14:51
Yurik79 wrote:

I am sure that the majority of you will get it in 30 secs ))
I got it wrong after 2+ minutes

Yurik,

here's my thought process:

moment after reading: huh? what the heck do I do?

3-4 seconds later: i have no clue, let me see if there's anything i can do; hmmm since there are two of 2^5, i can write 2(2^5).

*still hasn't dawned on me that what i'm doing is correct*

10 seconds after reading question: do the same to the 3^5

*still hasn't dawned on me that what i'm doing is correct*

15 seconds after reading question: wait a minute, 2(2^5) is the same thing as (2^1) * (2^5)

18 seconds after reading question: ohhhh, now i get it.

I guess the moral is, if you have no clue, just do something, anything--rearrange the terms. solve for one variable then the other, just do something.

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Manager
Joined: 01 Nov 2006
Posts: 70

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08 Nov 2006, 14:57
My thought process...

64 + um, 2100 + 3 * 29, um, 64 + 2190 -3, um, 64 plus 2187, um, 2200 + (64 -13) = 2251 um, oh darn, look at the answers.

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Senior Manager
Joined: 24 Oct 2006
Posts: 339

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08 Nov 2006, 15:32
This happens to everyone, I guess. Maybe, working on complicated questions makes us approach all questions the same way, even if it is too easy.

Thought for a while (2^1*2^5) + (3^1*3^5)...what's next? I too join the group.

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Director
Joined: 10 Oct 2005
Posts: 713

Kudos [?]: 25 [0], given: 0

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08 Nov 2006, 21:57
andrewnorway wrote:
Sometimes easy questions may be time killers idue to the stress on
the test day
Try this

Which of the following is equal to the value of 2^5+2^5+3^5+3^5+3^5

A)5^6
B)13^5
C)2^6+3^6
D)2^7+3^8
E)4^5+9^5

-------------------------------------------------------------------------------

2^5+2^5+3^5+3^5+3^5 = 2^1(2^5) + 3^1(3^5) = 2^6 + 3^6

I got this one but I know what you mean with the stress and easy questions. I have another post where I add 33 + 34 and get 77. And I added that over and over and got the same thing. The time is the killer, taking a step back helps on so many questions, but there just isn't time.

Exactly ))
BTW a day after I get it in 20 sec))
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08 Nov 2006, 21:57
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