Last visit was: 28 Mar 2025, 08:54 It is currently 28 Mar 2025, 08:54
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
Nullbyte
Joined: 06 Oct 2023
Last visit: 27 Mar 2025
Posts: 357
Own Kudos:
Given Kudos: 58
Posts: 357
Kudos: 132
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Purnank
Joined: 05 Jan 2024
Last visit: 28 Mar 2025
Posts: 698
Own Kudos:
Given Kudos: 166
Location: India
Concentration: General Management, Strategy
GMAT Focus 1: 635 Q88 V76 DI80
Products:
GMAT Focus 1: 635 Q88 V76 DI80
Posts: 698
Kudos: 531
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 28 March 2025
Posts: 100,137
Own Kudos:
Given Kudos: 92,748
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 100,137
Kudos: 711,530
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 28 March 2025
Posts: 100,137
Own Kudos:
Given Kudos: 92,748
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 100,137
Kudos: 711,530
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Problem Solving Butler: May 2023
May 28PS 1PS 2
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 28 March 2025
Posts: 100,137
Own Kudos:
Given Kudos: 92,748
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 100,137
Kudos: 711,530
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Critical Reasoning Butler: May 2024
May 28CR 1CR 2
User avatar
PrabhatKC
Joined: 05 Mar 2024
Last visit: 17 Aug 2024
Posts: 156
Own Kudos:
Given Kudos: 7
Posts: 156
Kudos: 31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
How to solve these questions?
User avatar
Nullbyte
Joined: 06 Oct 2023
Last visit: 27 Mar 2025
Posts: 357
Own Kudos:
Given Kudos: 58
Posts: 357
Kudos: 132
Kudos
Add Kudos
Bookmarks
Bookmark this Post
PrabhatKC
How to solve these questions?
Just find the last digit of the product in case of divisibility by 10
User avatar
PrabhatKC
Joined: 05 Mar 2024
Last visit: 17 Aug 2024
Posts: 156
Own Kudos:
Given Kudos: 7
Posts: 156
Kudos: 31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Need some indepth explanation, I don’t get how its 2
User avatar
PrabhatKC
Joined: 05 Mar 2024
Last visit: 17 Aug 2024
Posts: 156
Own Kudos:
Given Kudos: 7
Posts: 156
Kudos: 31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I don’t know the answer.

This is the closest clue to the answer I got.
User avatar
Purnank
Joined: 05 Jan 2024
Last visit: 28 Mar 2025
Posts: 698
Own Kudos:
Given Kudos: 166
Location: India
Concentration: General Management, Strategy
GMAT Focus 1: 635 Q88 V76 DI80
Products:
GMAT Focus 1: 635 Q88 V76 DI80
Posts: 698
Kudos: 531
Kudos
Add Kudos
Bookmarks
Bookmark this Post
what is the source of this question?
User avatar
PrabhatKC
Joined: 05 Mar 2024
Last visit: 17 Aug 2024
Posts: 156
Own Kudos:
Given Kudos: 7
Posts: 156
Kudos: 31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Jamborees Gmat Book
User avatar
Purnank
Joined: 05 Jan 2024
Last visit: 28 Mar 2025
Posts: 698
Own Kudos:
Given Kudos: 166
Location: India
Concentration: General Management, Strategy
GMAT Focus 1: 635 Q88 V76 DI80
Products:
GMAT Focus 1: 635 Q88 V76 DI80
Posts: 698
Kudos: 531
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Nullbyte
Just find the last digit of the product in case of divisibility by 10
. this is the way to solve

PrabhatKC
Jamborees Gmat Book
they dont have solutions?
User avatar
PrabhatKC
Joined: 05 Mar 2024
Last visit: 17 Aug 2024
Posts: 156
Own Kudos:
Given Kudos: 7
Posts: 156
Kudos: 31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The teacher solves in the class.
User avatar
Rucha.Shukla
Joined: 17 Jan 2024
Last visit: 28 Mar 2025
Posts: 93
Own Kudos:
Given Kudos: 689
Location: India
Posts: 93
Kudos: 66
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Units digit of 23^7 will be 7, units digit of 12^8 will be 6, units digit of 516^22 will be 6, so we have 7*6*6 = 252 [hence remainder will be 2]
User avatar
Purnank
Joined: 05 Jan 2024
Last visit: 28 Mar 2025
Posts: 698
Own Kudos:
Given Kudos: 166
Location: India
Concentration: General Management, Strategy
GMAT Focus 1: 635 Q88 V76 DI80
Products:
GMAT Focus 1: 635 Q88 V76 DI80
Posts: 698
Kudos: 531
Kudos
Add Kudos
Bookmarks
Bookmark this Post
check for conceptual videos about cyclicity of number in divisibility test on youtube
User avatar
Rucha.Shukla
Joined: 17 Jan 2024
Last visit: 28 Mar 2025
Posts: 93
Own Kudos:
Given Kudos: 689
Location: India
Posts: 93
Kudos: 66
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Rucha.Shukla
Joined: 17 Jan 2024
Last visit: 28 Mar 2025
Posts: 93
Own Kudos:
Given Kudos: 689
Location: India
Posts: 93
Kudos: 66
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Go through above in case of confusion, hope it helps :)
User avatar
PrabhatKC
Joined: 05 Mar 2024
Last visit: 17 Aug 2024
Posts: 156
Own Kudos:
Given Kudos: 7
Posts: 156
Kudos: 31
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Okay, I’ll view some YouTube videos after a break.
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 28 March 2025
Posts: 100,137
Own Kudos:
Given Kudos: 92,748
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 100,137
Kudos: 711,530
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Sukhmanbewli
Joined: 27 May 2024
Last visit: 17 Mar 2025
Posts: 18
Own Kudos:
Given Kudos: 44
Location: India
Schools: ISB '27 (I)
GRE 1: Q169 V156
GPA: 9.4
WE:Project Management (Insurance)
Schools: ISB '27 (I)
GRE 1: Q169 V156
Posts: 18
Kudos: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Q9 - (B) 6 raised to any power ends with 6, same goes for 5
(6-5)(6-5) =1, hence the units digit will be 1.
Q10 - (E) no square no. Ends with 8

Q8 (B)... divisibility rule of 4
   1  ...  240   241   242   243   244  ...  406   
Moderator:
General GMAT Forum Moderator
288 posts