Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Dec 1310:00 AM EST
-12:00 PM EST
Have you ever wondered how to score a PERFECT 805 on the GMAT? Meet Julia, a banking professional who used the Target Test Prep course to achieve this incredible feat. Julia's story is nothing short of an inspiration.
Dec 1410:00 AM EST
-12:00 PM EST
Think a 100% GMAT Verbal score is out of your reach? Target Test Prep will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Dec 1411:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.- Dec 15
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Dec 1608:00 AM PST
-11:59 PM PST
GMAT Club 12 Days of Christmas is a 4th Annual GMAT Club Winter Competition based on solving questions. This is the Winter GMAT competition on GMAT Club with an amazing opportunity to win over $40,000 worth of prizes!
09 Dec 2019, 00:53
Kudos
Bookmarks
C
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:
65% (01:47) correct
35%
(01:49)
wrong
based on 62
sessions
History
Date
Time
Result
Not Attempted Yet
In a certain forest 1/5 of the trees are Walnuts and 1/6 of the trees are Birches. What is the number of birch trees in the forest?
(1) The difference between the number of Walnut trees and the number of Birch trees is greater than 10
(2) There are fewer than 350 total trees
Are You Up For the Challenge: 700 Level Questions
(1) The difference between the number of Walnut trees and the number of Birch trees is greater than 10
(2) There are fewer than 350 total trees
Are You Up For the Challenge: 700 Level Questions
09 Dec 2019, 03:07
Kudos
Bookmarks
given
W= x/5 and B= x/6
#1
x/5-x/6 >10
x>300
insufficient
#2
total trees <350
insufficient
from 1 &2
LCM = 30 ; multiple of 300 ; >300 and < 350 ; 330
IMO C; W= 65 and B = 55
sufficient
W= x/5 and B= x/6
#1
x/5-x/6 >10
x>300
insufficient
#2
total trees <350
insufficient
from 1 &2
LCM = 30 ; multiple of 300 ; >300 and < 350 ; 330
IMO C; W= 65 and B = 55
sufficient
Bunuel
In a certain forest 1/5 of the trees are Walnuts and 1/6 of the trees are Birches. What is the number of birch trees in the forest?
(1) The difference between the number of Walnut trees and the number of Birch trees is greater than 10
(2) There are fewer than 350 total trees
Are You Up For the Challenge: 700 Level Questions
(1) The difference between the number of Walnut trees and the number of Birch trees is greater than 10
(2) There are fewer than 350 total trees
Are You Up For the Challenge: 700 Level Questions
09 Dec 2019, 09:36
Kudos
Bookmarks
Let the total trees be x
W=x/5
B=x/6
We have to find B
1 stm -- x/5-x/6=x/30; x/30>10 --> x>300. Not Sufficient
2 stm -- x<350; x can be 30, 60 so on untill x<350. Not sufficinet
Together 300<x<350 and the only integer divisible by 30 is 330. Sufficient
IMO
Ans: C
W=x/5
B=x/6
We have to find B
1 stm -- x/5-x/6=x/30; x/30>10 --> x>300. Not Sufficient
2 stm -- x<350; x can be 30, 60 so on untill x<350. Not sufficinet
Together 300<x<350 and the only integer divisible by 30 is 330. Sufficient
IMO
Ans: C
