Last visit was: 23 Apr 2026, 17:51 It is currently 23 Apr 2026, 17:51
Home
Messages
Tests
Schools
Events
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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 23 Apr 2026
Posts: 109,785
Own Kudos:
810,870
 [21]
Given Kudos: 105,853
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,785
Kudos: 810,870
 [21]
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 29 Sep 2015, 05:22
3
Kudos
Add Kudos
18
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

45% (medium)

Question Stats:

60% (01:13) correct 40% (01:07) wrong based on 463 sessions

History

Date
Time
Result
Not Attempted Yet
A nursery has 30 trees, carrying only pines, oaks, and maples. How many oaks does the nursery have?

(1) The ratio of pines to maples is 14:9.
(2) The ratio of pines to oaks is 2:1.

Kudos for a correct solution.
ShowHide Answer
Official Answer
A
Most Helpful Reply
User avatar
Naina1
User avatar
Joined: 05 Feb 2015
Last visit: 05 Jun 2016
Posts: 39
Own Kudos:
86
 [5]
Given Kudos: 8
Concentration: Finance, Entrepreneurship
Schools: ISB '16 IIMC IIMB IIMA
WE:Information Technology (Healthcare/Pharmaceuticals)
Schools: ISB '16 IIMC IIMB IIMA
Posts: 39
Kudos: 86
 [5]
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 29 Sep 2015, 09:40
4
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
A
statement 1 is sufficient as pine to maples ratio is 14:9
So, it could be 14 pine and 9 maples
OR 28 pine and 18 maples(Ruled out as it would exceed total 30)
So, only possible option is 14 pine, 9 maples and 30-(14+9)=7 oaks

Statement 2 is not sufficient as that leaves us with so many possibilities.
General Discussion
User avatar
camlan1990
User avatar
Joined: 11 Sep 2013
Last visit: 19 Sep 2016
Posts: 95
Own Kudos:
270
Given Kudos: 26
Schools: Kenan-Flagler '17 SMU '17 McCombs '19
Schools: Kenan-Flagler '17 SMU '17 McCombs '19
Posts: 95
Kudos: 270
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 29 Sep 2015, 06:00
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A nursery has 30 trees, carrying only pines, oaks, and maples. How many oaks does the nursery have?

(1) The ratio of pines to maples is 14:9.
(2) The ratio of pines to oaks is 2:1.

Kudos for a correct solution.
Show more

(1) The ratio of pines to maples is 14:9.

There is any info about OAKS => INSUFFICIENT

(2) The ratio of pines to oaks is 2:1.
Just know about the ratio of pinks to oaks = 2:1, Pinks + Oaks + Maples = 30
There is no info about MAPLES
=> INSUF

(1) + (2) => pinks to oaks = 2:1 and pines to maples is 14:9 => Enough information to calculate the number of OAKS
=> SUFFICIENT
=> Ans: C
User avatar
BrainLab
User avatar
Current Student
Joined: 10 Mar 2013
Last visit: 26 Jan 2025
Posts: 343
Own Kudos:
3,215
Given Kudos: 200
Location: Germany
Concentration: Finance, Entrepreneurship
Schools: WHU MBA"20 (A$)
GMAT 1: 580 Q46 V24
GPA: 3.7
WE:Marketing (Telecommunications)
Schools: WHU MBA"20 (A$)
GMAT 1: 580 Q46 V24
Posts: 343
Kudos: 3,215
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 29 Sep 2015, 06:58
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A nursery has 30 trees, carrying only pines, oaks, and maples. How many oaks does the nursery have?

(1) The ratio of pines to maples is 14:9.
(2) The ratio of pines to oaks is 2:1.

Kudos for a correct solution.
Show more


Answer (C)

St 1 alone is not Sufficient
St 2 alone is not sufficient
Both: P:M = 14:9, P:O = 2:1 = 14:7 --> # of Oaks = 7
User avatar
bbednar
User avatar
Joined: 25 Aug 2015
Last visit: 17 Dec 2018
Posts: 131
Own Kudos:
19
 [2]
Given Kudos: 39
Concentration: Marketing, Entrepreneurship
Schools: Mays '18 (WA) Kelley '18 (A) Krannert '18 (M) Madison '18 (D) Moore '18 (A) BYU-Marriott'18 (D)
GMAT 1: 610 Q39 V34
GPA: 3.14
Products:
My Reviews
Schools: Mays '18 (WA) Kelley '18 (A) Krannert '18 (M) Madison '18 (D) Moore '18 (A) BYU-Marriott'18 (D)
GMAT 1: 610 Q39 V34
Posts: 131
Kudos: 19
 [2]
A nursery has 30 trees, carrying only pines, oaks, and maples. How man Updated on: 29 Sep 2015, 10:18
Originally posted by bbednar on 29 Sep 2015, 07:09.
Last edited by bbednar on 29 Sep 2015, 10:18, edited 3 times in total.
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A nursery has 30 trees, carrying only pines, oaks, and maples. How many oaks does the nursery have?

(1) The ratio of pines to maples is 14:9.
(2) The ratio of pines to oaks is 2:1.

Kudos for a correct solution.
Show more

A

If you know there are 30 trees total, and given the information in (1) you could figure out how many pines, and maples there are and then subtract that number from 30, the remainder giving you the number of oaks
User avatar
KarishmaB
User avatar
Joined: 16 Oct 2010
Last visit: 23 Apr 2026
Posts: 16,441
Own Kudos:
79,396
 [1]
Given Kudos: 484
Location: Pune, India
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 16,441
Kudos: 79,396
 [1]
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 29 Sep 2015, 23:00
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
camlan1990
Bunuel
A nursery has 30 trees, carrying only pines, oaks, and maples. How many oaks does the nursery have?

(1) The ratio of pines to maples is 14:9.
(2) The ratio of pines to oaks is 2:1.

Kudos for a correct solution.

(1) The ratio of pines to maples is 14:9.

There is any info about OAKS => INSUFFICIENT

(2) The ratio of pines to oaks is 2:1.
Just know about the ratio of pinks to oaks = 2:1, Pinks + Oaks + Maples = 30
There is no info about MAPLES
=> INSUF

(1) + (2) => pinks to oaks = 2:1 and pines to maples is 14:9 => Enough information to calculate the number of OAKS
=> SUFFICIENT
=> Ans: C
Show more

This question is another one of our little demons! So simple yet so tricky!

When given a ratio, there are infinite ways in which you can have the actual numbers - but the number of ways can be constrained by a sum which it should not exceed.
So though stmt. 1 gives you just a ratio, the total sum of 30 sets constraints on it - the actual numbers must be 14 and 9 only.
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 23 Apr 2026
Posts: 109,785
Own Kudos:
810,870
 [2]
Given Kudos: 105,853
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,785
Kudos: 810,870
 [2]
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 05 Oct 2015, 03:14
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
A nursery has 30 trees, carrying only pines, oaks, and maples. How many oaks does the nursery have?

(1) The ratio of pines to maples is 14:9.
(2) The ratio of pines to oaks is 2:1.

Kudos for a correct solution.
Show more

VERITAS PREP OFFICIAL SOLUTION:

You learn from statement (1) that the ratio of pines to maples is 14:9. Since it does not tell you anything about oaks, it can’t be sufficient, right? Remember that you were given a total in the question stem of 30 trees. If the ratio is 14:9 for pines to maples then the multiplier must be 1, as a higher multiplier would make the total over 30 trees. Since you have proved the multiplier is 1, then there must be 7 oaks, and statement (1) is sufficient without needing what is given in statement (2).

The correct answer choice is A.
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,964
Own Kudos:
1,117
Posts: 38,964
Kudos: 1,117
A nursery has 30 trees, carrying only pines, oaks, and maples. How man 15 Aug 2025, 20:15
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:
Bunuel
Math Expert
109785 posts
kingbucky
498 posts
Gmat860sanskar
212 posts