Last visit was: 14 Jul 2024, 11:00 It is currently 14 Jul 2024, 11:00
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

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.

# In 1984 a certain union had a total of 15,600 members. Was the percent

SORT BY:
Tags:
Show Tags
Hide Tags
Director
Joined: 26 Oct 2016
Posts: 506
Own Kudos [?]: 3408 [4]
Given Kudos: 877
Location: United States
Schools: HBS '19
GMAT 1: 770 Q51 V44
GPA: 4
WE:Education (Education)
Director
Joined: 05 Mar 2015
Posts: 838
Own Kudos [?]: 875 [1]
Given Kudos: 45
Intern
Joined: 03 Jan 2017
Posts: 24
Own Kudos [?]: 15 [1]
Given Kudos: 5
Target Test Prep Representative
Joined: 14 Oct 2015
Status:Founder & CEO
Affiliations: Target Test Prep
Posts: 19130
Own Kudos [?]: 22629 [1]
Given Kudos: 286
Location: United States (CA)
Re: In 1984 a certain union had a total of 15,600 members. Was the percent [#permalink]
1
Bookmarks
anairamitch1804 wrote:
In 1984 a certain union had a total of 15,600 members. Was the percent increase in the total number of members in the union from 1984 to 1985 greater than that from 1985 to 1986 ?

(1) From 1984 to 1985 the total number of members in the union increased by 781, and from 1985 to 1986 the total number of members in the union again increased by 781.

(2) In 1985 the union had a total of 16,381 members, and in 1986 the union had a total of 17,162 members.

We are given that in 1984 a certain union had a total of 15,600 members. We need to determine whether the percentage increase in the total number of members in the union from 1984 to 1985 was greater than the increase from 1985 to 1986.

Statemate One Alone:

From 1984 to 1985 the total number of members in the union increased by 781, and from 1985 to 1986 the total number of members in the union again increased by 781.

Since there were 15,600 members in 1984, there were 15,600 + 781 = 16,381 members in 1985 and 16,381 + 781 = 17,162 members in 1986.

Since we have the number of members in 1984, 1985, and 1986, we have enough information to determine whether the percentage increase in the total number of members in the union from 1984 to 1985 was greater than the increase from 1985 to 1986. Statement one alone is sufficient to answer the question.

Statement Two Alone:

In 1985 the union had a total of 16,381 members, and in 1986 the union had a total of 17,162 members.

Once again, since we have the number of members in 1984, 1985, and 1986, we have enough information to determine whether the percentage increase in the total number of members in the union from 1984 to 1985 was greater than the increase from 1985 to 1986. Statement two alone is sufficient to answer the question.

GMAT Club Legend
Joined: 19 Dec 2014
Status:GMAT Assassin/Co-Founder
Affiliations: EMPOWERgmat
Posts: 21835
Own Kudos [?]: 11778 [0]
Given Kudos: 450
Location: United States (CA)
GMAT 1: 800 Q51 V49
GRE 1: Q170 V170
Re: In 1984 a certain union had a total of 15,600 members. Was the percent [#permalink]
Hi All,

Certain DS questions are essentially just 'logic' questions - you don't really have to do any math to get to the correct answer as long as you understand the concepts involved (and what you really 'need' to answer the specific question that is asked.

In this prompt, we're given the number of members in the union in 1984. We're asked if the percent increase in members from 1984 to 1985 was greater than the percent increase in members from 1985 to 1986. This is a YES/NO question.

1) From 1984 to 1985 the total number of members in the union increased by 781, and from 1985 to 1986 the total number of members in the union again increased by 781.

With the information in Fact 1, we can find the total membership in 1985 and in 1986, so we CAN calculate the percent increase for each of the two time periods. Once we have that information, then we can definitively answer the question.
Fact 1 is SUFFICIENT.

(2) In 1985 the union had a total of 16,381 members, and in 1986 the union had a total of 17,162 members.

With the information in Fact 2, we can have the total membership in 1985 and in 1986, so we CAN calculate the percent increase for each of the two time periods. Once we have that information, then we can definitively answer the question.
Fact 2 is SUFFICIENT.

GMAT assassins aren't born, they're made,
Rich
Non-Human User
Joined: 09 Sep 2013
Posts: 33966
Own Kudos [?]: 851 [0]
Given Kudos: 0
Re: In 1984 a certain union had a total of 15,600 members. Was the percent [#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: In 1984 a certain union had a total of 15,600 members. Was the percent [#permalink]
Moderator:
Math Expert
94342 posts