Last visit was: 24 Apr 2026, 15:34 It is currently 24 Apr 2026, 15:34
Close
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
Your Progress

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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
GMATinsight
User avatar
Major Poster
Joined: 08 Jul 2010
Last visit: 24 Apr 2026
Posts: 6,977
Own Kudos:
16,914
 [15]
Given Kudos: 128
Status:GMAT/GRE Tutor l Admission Consultant l On-Demand Course creator
Location: India
GMAT: QUANT+DI EXPERT
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
WE:Education (Education)
Products:
Expert
Expert reply
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
Posts: 6,977
Kudos: 16,914
 [15]
Kudos
Add Kudos
14
Bookmarks
Bookmark this Post
User avatar
Archit3110
User avatar
Major Poster
Joined: 18 Aug 2017
Last visit: 24 Apr 2026
Posts: 8,629
Own Kudos:
5,190
 [4]
Given Kudos: 243
Status:You learn more from failure than from success.
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1: 545 Q79 V79 DI73
GMAT Focus 2: 645 Q83 V82 DI81
GPA: 4
WE:Marketing (Energy)
Products:
GMAT Focus 2: 645 Q83 V82 DI81
Posts: 8,629
Kudos: 5,190
 [4]
4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
jfranciscocuencag
Joined: 12 Sep 2017
Last visit: 17 Aug 2024
Posts: 227
Own Kudos:
144
 [1]
Given Kudos: 132
Posts: 227
Kudos: 144
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
Ish1996
Joined: 18 Jan 2019
Last visit: 27 Apr 2019
Posts: 19
Own Kudos:
Given Kudos: 35
Posts: 19
Kudos: 2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
jfranciscocuencag
Archit3110
GMATinsight
In how many ways can a square be identified in a chess board (8x8 squares) (figure attached)?

A) 64
B) 65
C) 204
D) 205
E) 408

https://www.GMATinsight.com

total no of squares which can be formed in a 8x8 chess board :
no of 1*1 squares ; 8*8 = 64,
2*2 squares= 7*7 , 3*3 squares = 6*6;36, 4*4 squares=5*5
5*5 squares = 4*4
6*6 squares = 3*3
7*7 squares =2*2
8*8 squares = 1*1
total
1^2+2^2+3^2+....+8^2
1+4+9+16+25+36+49+64
IMO C ; 204

Hello Archit3110 !

Could you please explain to me how do you get to 2*2 = 7*7 and 3*3 = 6*6?

I'm having trouble to see those squares.

Kind regards!

likewise, for me I see 16 squares that are 2x2 rather than 49,
User avatar
Archit3110
User avatar
Major Poster
Joined: 18 Aug 2017
Last visit: 24 Apr 2026
Posts: 8,629
Own Kudos:
5,190
 [1]
Given Kudos: 243
Status:You learn more from failure than from success.
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1: 545 Q79 V79 DI73
GMAT Focus 2: 645 Q83 V82 DI81
GPA: 4
WE:Marketing (Energy)
Products:
GMAT Focus 2: 645 Q83 V82 DI81
Posts: 8,629
Kudos: 5,190
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Ish1996 & jfranciscocuencag

Solution attached

I solved question by visualising squares...

hope this helps

solution in two parts... :)

kind apologizes for my bad handwriting .. hope you are able to understand whats written..
Attachments

File comment: File 1
IMG_20190308_143223988.jpg
IMG_20190308_143223988.jpg [ 3.95 MiB | Viewed 3503 times ]

User avatar
Archit3110
User avatar
Major Poster
Joined: 18 Aug 2017
Last visit: 24 Apr 2026
Posts: 8,629
Own Kudos:
5,190
 [1]
Given Kudos: 243
Status:You learn more from failure than from success.
Location: India
Concentration: Sustainability, Marketing
GMAT Focus 1: 545 Q79 V79 DI73
GMAT Focus 2: 645 Q83 V82 DI81
GPA: 4
WE:Marketing (Energy)
Products:
GMAT Focus 2: 645 Q83 V82 DI81
Posts: 8,629
Kudos: 5,190
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Ish1996 & jfranciscocuencag

part 2 ...
hope this helps... :)
Attachments

File comment: File 2
IMG_20190308_143228986.jpg
IMG_20190308_143228986.jpg [ 3.51 MiB | Viewed 3468 times ]

User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,974
Own Kudos:
Posts: 38,974
Kudos: 1,117
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderators:
Math Expert
109818 posts
Tuck School Moderator
853 posts