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Consecutive even number

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Consecutive even number

by Gopi » Wed Aug 12, 2009 9:40 pm
Guys,

I am not sure, whether this question is complete or not. please check this one and let me know how to go about it.

Thanks in advance
Gopi

Find the fourth consecutive even number

1) The sum of the last two numbers is 30
2) The sum of the first two numbers is 22
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by tohellandback » Wed Aug 12, 2009 9:45 pm
IMO D
4 consecutive even numbers
n-4,n-2,n,n+2

1)n+n+2=30
n=14
you can find all the numbers

SUFF

2)n-4+n-2=22
n=14
you can find all the numbers

SUFF
The powers of two are bloody impolite!!
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by cramya » Wed Aug 12, 2009 9:52 pm
Agree with tohellandback it's D


For the GMAT it's useful to know how to represent consecutives:

Consecutive intgers: n,n+1,n+2,n+3...

Consecutive even's : 2n,2n+2,2n+4,2n+6...

Consecutive odd's: 2n+1,2n+3,2n+5,2n+7....

Regards,
CR
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Re: Consecutive even number

by vikram_k51 » Thu Aug 13, 2009 10:20 am
Gopi wrote:Guys,

I am not sure, whether this question is complete or not. please check this one and let me know how to go about it.

Thanks in advance
Gopi

Find the fourth consecutive even number

1) The sum of the last two numbers is 30
2) The sum of the first two numbers is 22
Answer will be D.
Let the nos. be a-4,a-2,a,a+2.From 1 and 2 each the values of a can be found.
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