GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 26 May 2019, 10:22

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# The size of a TV screen is given as the length of the screen's diagona

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 55277
The size of a TV screen is given as the length of the screen's diagona  [#permalink]

### Show Tags

11 Sep 2018, 01:43
00:00

Difficulty:

35% (medium)

Question Stats:

71% (02:11) correct 29% (03:01) wrong based on 9 sessions

### HideShow timer Statistics

The size of a TV screen is given as the length of the screen's diagonal. If the screens were flat, then the area of a square 27-inch screen would be how many square inches greater than the area of a square 25-inch screen?

A. 52
B. 65
C. 78
D. 104
E. 208

_________________
Director
Joined: 20 Feb 2015
Posts: 795
Concentration: Strategy, General Management
The size of a TV screen is given as the length of the screen's diagona  [#permalink]

### Show Tags

11 Sep 2018, 02:32
1
Bunuel wrote:
The size of a TV screen is given as the length of the screen's diagonal. If the screens were flat, then the area of a square 27-inch screen would be how many square inches greater than the area of a square 25-inch screen?

A. 52
B. 65
C. 78
D. 104
E. 208

a1$$\sqrt{2}$$=27 = > a1= 27/$$\sqrt{2}$$
a2$$\sqrt{2}$$=25 = > a2 = 25/$$\sqrt{2}$$

difference in area = $$\frac{1}{2}$$( $$(27)^2$$ - $$(25)^2$$) =$$\frac{1}{2}$$*(27+25)(27-25) = $$\frac{104}{2}$$= 52
The size of a TV screen is given as the length of the screen's diagona   [#permalink] 11 Sep 2018, 02:32
Display posts from previous: Sort by