Hi seyna,
The calculation that you've listed ins't completely clear. Could you retype it, using brackets to separate information.
As it's written, it appears to be: 2^6 / (2^3 - 2) = 64/6, but that doesn't sound like what the author intended.
GMAT assassins aren't born, they're made,
Rich
I think the answer is 2^5 but the answer says 2^8.
This topic has expert replies
Source: Beat The GMAT — Problem Solving |
GMAT/MBA Expert
-
[email protected]
- Elite Legendary Member
- Posts: 10392
- Joined: Sun Jun 23, 2013 6:38 pm
- Location: Palo Alto, CA
- Thanked: 2867 times
- Followed by:511 members
- GMAT Score:800
-
Matt@VeritasPrep
- GMAT Instructor
- Posts: 2630
- Joined: Wed Sep 12, 2012 3:32 pm
- Location: East Bay all the way
- Thanked: 625 times
- Followed by:119 members
- GMAT Score:780
I'm not sure this is right.
If the problem reads
2^(4-1)^2
---------
(2^3) - 2
then you'd have
2^(3)^2
-------
8 - 2
or
2^9
---
6
or
256/3.
If the problem reads
2^(4-1)^2
---------
2^(3-2)
then you'd have 2^9 / 2^1, or 2^8.
But frankly I don't think it's either of these. As written, this question would be interpreted by most computers (such as Wolfram Alpha) as
2^(4-1)^2
--------- - 2
2^3
or 2^6 - 2, or 62.
Seems unclear to me. I'd try to avoid questions that don't have proper exponent formatting, as they may not come from reliable sources.
If the problem reads
2^(4-1)^2
---------
(2^3) - 2
then you'd have
2^(3)^2
-------
8 - 2
or
2^9
---
6
or
256/3.
If the problem reads
2^(4-1)^2
---------
2^(3-2)
then you'd have 2^9 / 2^1, or 2^8.
But frankly I don't think it's either of these. As written, this question would be interpreted by most computers (such as Wolfram Alpha) as
2^(4-1)^2
--------- - 2
2^3
or 2^6 - 2, or 62.
Seems unclear to me. I'd try to avoid questions that don't have proper exponent formatting, as they may not come from reliable sources.
