Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35

Oldest

Best Reply

Author

Message

TAGS:

Manager

Joined: 07 May 2007

Posts: 184

Followers: 1

Kudos [?]: 1 [0], given: 0

Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35 [#permalink]

01 Jul 2007, 10:21

00:00

Question Stats:

0% (00:00) correct

0% (00:00) wrong

based on 0 sessions

Is x > 10^10 ?

(1) x > 2^34

(2) x = 2^35

Edited the post

Last edited by iamba on 01 Jul 2007, 12:18, edited 1 time in total.

Manager

Joined: 03 Mar 2007

Posts: 169

Followers: 1

Kudos [?]: 3 [0], given: 0

[#permalink]

01 Jul 2007, 11:03

I agree with B.

statement 2 tells you that it's less than 1,010.

Joined: 08 Jun 2005

Posts: 1172

Followers: 5

Kudos [?]: 78 [0], given: 0

[#permalink]

01 Jul 2007, 22:02

statement 1

5^3 = 125

2^7 = 128

so:

2^34 > 10^10 =

2^10*2^24 > 2^10*5^10 =

2^24 > 5^10 =

2^7*2^7*2^7*2^3 > 5^3*5^3*5^3*5 =

128*128*128*8 > 125*125*125*5 = true

meaning: if X is greater then 2^34 it has to be greater then 10^10.

sufficient

statement 2

5^3 = 125

2^7 = 128

same logic as in statement 1

128*128*128*16 > 125*125*125*5 = true

meaning: if X is equal to 2^35 it has to be greater then 10^10.

sufficient

the answer is (D)

:-D

Senior Manager

Joined: 28 Feb 2007

Posts: 317

Followers: 1

Kudos [?]: 20 [0], given: 0

[#permalink]

02 Jul 2007, 02:21

before the Question was edited the answer was B. Now D.
Plz be careful while writing the problem,otherwise it makes others feel uncomfortable. Thanks

Manager

Joined: 07 May 2007

Posts: 184

Followers: 1

Kudos [?]: 1 [0], given: 0

[#permalink]

02 Jul 2007, 20:06

Apologise if anyone felt unconfortable. Copy+paste did not show the ^ sign.

OA is D

Point to note is that we need not spend time expanding the second statement. Since its equality, its sufficient to say whether 2^35 is greater than 10^10

[#permalink] 02 Jul 2007, 20:06

		Similar topics	Author	Replies	Last post
Similar Topics:		Is x > 10^10 1) x > 2^34 2) x = 2^35	tinman1412	6	06 Sep 2007, 15:19
		If x - 1/3^7 - 1/3^8 - 1/3^9 = 1/3^9, then x = 2/3^4 2/3^5	study	2	08 Nov 2008, 23:21
	3	Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35	siddhans	8	22 Jun 2011, 00:22
	1	If x2>1?	KTMHammer	2	12 Feb 2012, 12:00
	12	Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35	dvinoth86	15	20 Feb 2012, 18:55

Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35

Main navigation

GMAT Resources

Partners

MBA Resources

GMAT ® is a registered trademark of the Graduate Management Admission Council ® (GMAC ®). GMAT Club's website has not been reviewed or endorsed by GMAC.

GMAT Courses

Admissions Consulting

Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35

Is x > 10^10 ? (1) x > 2^34 (2) x = 2^35

Main navigation

GMAT Resources

Partners

MBA Resources