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.
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
03 Nov 2012, 04:49
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
59% (02:17) correct
41%
(02:19)
wrong
based on 295
sessions
History
Date
Time
Result
Not Attempted Yet
In one week a construction worker worked more than 40 hours, and was paid two times his regular hourly rate for every hour worked in excess of 40 hours. If he earned $780, how many hours did he work in that week?
(1) If he had worked 6 more hours that week, his earnings would have been $960.
(2) If he had worked 20 fewer hours that week, his earnings would have been $390 less that week.
(1) If he had worked 6 more hours that week, his earnings would have been $960.
(2) If he had worked 20 fewer hours that week, his earnings would have been $390 less that week.
03 Nov 2012, 05:08
Kudos
Bookmarks
Jp27
From question: "construction worker worked more than 40 hours"
Statement 1. 6 more hours = 180 ( 960-780).
This gives us rate of overtime. Usual rate is half that rate. We can find out total number of hours sufficient to earn 780
Sufficient.
Statement 2. 20 less hours = 390
But we dont know if rate in these 20 hours was overtime rate /regular rate or a combination of both rates (such as 5 hrs overtime, 15 regular etc)
Insufficient.
Ans A it is.
03 Nov 2012, 05:17
Kudos
Bookmarks
In one week a construction worker worked more than 40 hours, and was paid two times his regular hourly rate for every hour worked in excess of 40 hours. If he earned $780, how many hours did he work in that week?
(1) If he had worked 6 more hours that week, his earnings would have been $960. Since we already know that the constructor worked more than 40 hours that week, then for these 6 more hours he would have been paid two times his regular hourly rate. Thus $960-$780=$180 represent salary for 6 hours of work paid at double rate: {overtime rate} = $180/6=$30 and {regular rate} = $15. Next, 40*15+x*30=$780 --> x=6. Therefor he worked 40+6=46 hours that week. Sufficient.
(2) If he had worked 20 fewer hours that week, his earnings would have been $390 less that week. If that week the constructor worked for 60 hours, then all $390 represent salary for 20 hours of overtime, but if that week the constructor worked for 50 hours, then $390 represent salary for 10 hours of regular work and 10 hours of overtime. Not sufficient.
Answer: A.
Hope it's clear.
(1) If he had worked 6 more hours that week, his earnings would have been $960. Since we already know that the constructor worked more than 40 hours that week, then for these 6 more hours he would have been paid two times his regular hourly rate. Thus $960-$780=$180 represent salary for 6 hours of work paid at double rate: {overtime rate} = $180/6=$30 and {regular rate} = $15. Next, 40*15+x*30=$780 --> x=6. Therefor he worked 40+6=46 hours that week. Sufficient.
(2) If he had worked 20 fewer hours that week, his earnings would have been $390 less that week. If that week the constructor worked for 60 hours, then all $390 represent salary for 20 hours of overtime, but if that week the constructor worked for 50 hours, then $390 represent salary for 10 hours of regular work and 10 hours of overtime. Not sufficient.
Answer: A.
Hope it's clear.
