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# Functions

Author Message
Manager
Joined: 24 Sep 2018
Posts: 139

### Show Tags

08 Oct 2018, 03:08
00:00

Difficulty:

(N/A)

Question Stats:

75% (00:40) correct 25% (00:00) wrong based on 4 sessions

### HideShow timer Statistics

If the operation & is defined for all x and y by the equation x & y=2xy, then 3 & (4 & 5) =
A. 80
B. 120
C. 160
D. 240
E. 360

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Please award kudos, If this post helped you in someway.

Director
Joined: 20 Feb 2015
Posts: 795
Concentration: Strategy, General Management

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08 Oct 2018, 03:25
GMATYoda wrote:
If the operation & is defined for all x and y by the equation x & y=2xy, then 3 & (4 & 5) =
A. 80
B. 120
C. 160
D. 240
E. 360

3 & (4 & 5) = 3 & 40 = 240
Math Expert
Joined: 02 Sep 2009
Posts: 52911

### Show Tags

08 Oct 2018, 03:57
GMATYoda wrote:
If the operation & is defined for all x and y by the equation x & y=2xy, then 3 & (4 & 5) =
A. 80
B. 120
C. 160
D. 240
E. 360

Discussed here: https://gmatclub.com/forum/if-the-opera ... 96474.html
_________________
Re: Functions   [#permalink] 08 Oct 2018, 03:57
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