Last visit was: 21 Jun 2024, 01:12 It is currently 21 Jun 2024, 01:12
Toolkit
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.
Request Expert Reply

# If O and ∆ are digits. What is the value of ∆.OOO + O. ∆∆∆?

SORT BY:
Tags:
Show Tags
Hide Tags
Math Expert
Joined: 02 Sep 2009
Posts: 93895
Own Kudos [?]: 633521 [21]
Given Kudos: 82410
Manager
Joined: 22 Sep 2018
Posts: 73
Own Kudos [?]: 78 [2]
Given Kudos: 95
GMAT Club Legend
Joined: 12 Sep 2015
Posts: 6806
Own Kudos [?]: 30600 [3]
Given Kudos: 799
Location: Canada
GMATWhiz Representative
Joined: 23 May 2022
Posts: 631
Own Kudos [?]: 450 [0]
Given Kudos: 6
Location: India
GMAT 1: 760 Q51 V40
Re: If O and are digits. What is the value of .OOO + O. ? [#permalink]
Expert Reply
Bunuel wrote:
If O and ∆ are digits. What is the value of ∆.OOO + O. ∆∆∆?

(1) ∆ + O = 10
(2) ∆ = O

Solution:
Pre Analysis:
• Given O and ∆ are digits, we are asked the value of ∆.OOO + O. ∆∆∆

Statement 1: ∆ + O = 10
• If ∆ + O = 10, then the following addition can take place:
Attachment:

sum.png [ 3.45 KiB | Viewed 1505 times ]
• Thus, statement 1 alone is sufficient and we can eliminate options B, C and E

Statement 2: ∆ = O
• This information is not going to help us get the value of ∆.OOO + O. ∆∆∆
• Thus, statement 2 alone is not sufficient

Hence the right answer is Option A
Non-Human User
Joined: 09 Sep 2013
Posts: 33636
Own Kudos [?]: 839 [0]
Given Kudos: 0
Re: If O and are digits. What is the value of .OOO + O. ? [#permalink]
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: If O and are digits. What is the value of .OOO + O. ? [#permalink]
Moderator:
Math Expert
93896 posts