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If a1, a2, a3, . . . , an, . . . is a sequence such that

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If a1, a2, a3, . . . , an, . . . is a sequence such that [#permalink] New post 01 Nov 2006, 08:09
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A
B
C
D
E

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17. If a1, a2, a3, . . . , an, . . . is a sequence such that an=2n for all n ≥ 1, is ai greater than aj ?

(1) i is odd and j is even
(2) i2 > j2


Ans: B

20. If S is the sum of the first n positive integers, what is the value of n ?

(1) S < 20
(2) s2 > 220


Ans: C

12. Is r > s ?

(1) -r + s < 0
(2) r < | s |


Ans: A

14. Is |x – 3| < 7 ?

(1) x > 0
(2) x < 10


Ans: C

18. If digit h is the hundredths’ digit in the decimal d=0.2h6, what is the value of d, rounded to the nearest tenth?
(1) d <
(2) h < 5

Ans: D


23. In the figure attached, segments RS and TU represent two positions of the same ladder leaning against the side SV of a wall. The length of TV is how much greater than the length of RV?
(1) The length of TU is 10 meters.
(2) The length of RV is 5 meters.


Ans D
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 [#permalink] New post 02 Nov 2006, 07:31
Thanks a ton Priya. You were outstanding. :)

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Restating Q 18

18. If digit h is the hundredths’ digit in the decimal d=0.2h6, what is the value of d, rounded to the nearest tenth?

(1) d < 1/4
(2) h < 5

Ans: D
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 [#permalink] New post 02 Nov 2006, 11:10
Thanks Sujay!

I'll answer the below q with respect to S1.

18. If digit h is the hundredths’ digit in the decimal d=0.2h6, what is the value of d, rounded to the nearest tenth?

(1) d < 1/4
(2) h < 5

S1 says d<0.25 which means h must be less than 5.
Hence suff.

S2 is suff as explained earlier.
Hence D.
  [#permalink] 02 Nov 2006, 11:10
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