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ds - numbers N

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ds - numbers N [#permalink] New post 06 Nov 2005, 10:32
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Question Stats:

100% (01:05) correct 0% (00:00) wrong based on 2 sessions
If set N contains only consecutive positive integers, what is the sum of the numbers in set N?
(1) Nineteen times the sum of the first number in the set and the last number in the set is 1729
(2) There are 38 numbers in the set.
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 [#permalink] New post 06 Nov 2005, 12:47
I will go with C

Stmt 1) Let f be the first number and l be the last number
19 ( f + l ) = 1729
-> f + l = 91 (A)

Hence INSUFF

Stmt 2) is INSUFF.

Combining, we can calculate 'f' from (A) and Stmt 2 - Total 38 numbers. Hence suff.

Pls let me know if I have missed anything.
  [#permalink] 06 Nov 2005, 12:47
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