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.
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 23
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. 
Nov 2510:00 AM EST
-11:00 AM EST
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
19 Nov 2019, 01:41
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
49% (01:09) correct
51%
(01:11)
wrong
based on 211
sessions
History
Date
Time
Result
Not Attempted Yet
In a bulb factory there are different kinds of bulbs, what is the probability that a bulb chosen randomly is a halogen?
(1) There are three times as many halogens than any other bulb in the factory.
(2) The ratio between the halogen to all the other bulbs is 2 to 7.
Are You Up For the Challenge: 700 Level Questions
(1) There are three times as many halogens than any other bulb in the factory.
(2) The ratio between the halogen to all the other bulbs is 2 to 7.
Are You Up For the Challenge: 700 Level Questions
19 Nov 2019, 02:09
Kudos
Bookmarks
Bunuel
#1
There are three times as many halogens than any other bulb in the factory.
total bulbs not know
x=3x ; total 3/4 halogen
insufficient
#2
The ratio between the halogen to all the other bulbs is 2 to 7.
H/other = 2/7 so P of halogen ; 2/9
IMO B sufficient
19 Nov 2019, 02:18
Kudos
Bookmarks
My answer is (D).
(1) There are three times as many halogens than any other bulb in the factory.
This indicates that the ratio between Halogens vs. others is 3:1. Sufficient
(2) It provides the ratio directly. Sufficient.
If my answer is right, though, statement (1) and (2) provides different ratios. In actual GMAT DS questions, (1) and (2) never contradict with each other.
(1) There are three times as many halogens than any other bulb in the factory.
This indicates that the ratio between Halogens vs. others is 3:1. Sufficient
(2) It provides the ratio directly. Sufficient.
If my answer is right, though, statement (1) and (2) provides different ratios. In actual GMAT DS questions, (1) and (2) never contradict with each other.
