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.
- Jun 22
05:30 AM PDT
-07:30 AM PDT
Join our webinar to master GMAT RC Main Point Questions! Learn effective strategies to decipher passage themes and purposes. Senior Verbal Expert- Sunita Singhvi will equip you with tools to navigate complexities and avoid common traps set by the GMAT. - Jun 22
11:00 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 - Jun 22
12:00 PM EDT
-01:00 PM EDT
TTP has received over 700 reviews on GMAT Club! This incredible milestone is a testament to our dedication to helping students score high on the GMAT for over a decade. - Jun 23
05:30 AM PDT
-07:30 AM PDT
Strategizing for the test is as important as preparing for it. Attend this webinar by Strategy Expert – Piyush, to understand how the GMAT Focus algorithm works and get insights on how you can use it to your advantage to maximise your score to 99%ile. - Jun 23
11:00 AM IST
-01:00 PM IST
Attend this session to evaluate your current skill level, learn process skills, and solve through tough Arithmetic questions - Jun 23
01:00 PM EDT
-02:00 PM EDT
Have you ever wondered how to score a PERFECT 805 on the GMAT Focus Edition? 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.
The mean weight of 12 packages a retailer needs to ship on Monday is 1
[#permalink]
Updated on: 20 Aug 2019, 23:11
1
Kudos
24
Bookmarks
Show timer
00:00
A
B
C
D
E
Difficulty:
Question Stats:
59% (03:09) correct
The mean weight of 12 packages a retailer needs to ship on Monday is 10 ounces. The retailer pays 50 cents per ounce on shipping, plus one dollar per package for insurance on five of the packages. If two additional packages must be shipped on Monday, the percent increase on the retailer’s shipping cost for that day is less than 20% if neither package is insured and greater than 20% if one package is insured. What is the combined weight of the two additional packages, in ounces ?
A) 23
B) 24
C) 25
D) 26
E) 27
Arithmetic: Percents and word problem
A) 23
B) 24
C) 25
D) 26
E) 27
Arithmetic: Percents and word problem
GMAT Club Legend
Joined: 03 Oct 2013
Affiliations: CrackVerbal
Posts: 4938
Given Kudos: 217
Location: India
Re: The mean weight of 12 packages a retailer needs to ship on Monday is 1
[#permalink]
21 Aug 2019, 00:31
1
Kudos
4
Bookmarks
Quote:
The mean weight of 12 packages a retailer needs to ship on Monday is 10 ounces. The retailer pays 50 cents per ounce on shipping, plus one dollar per package for insurance on five of the packages. If two additional packages must be shipped on Monday, the percent increase on the retailer’s shipping cost for that day is less than 20% if neither package is insured and greater than 20% if one package is insured. What is the combined weight of the two additional packages, in ounces ?
A) 23
B) 24
C) 25
D) 26
E) 27
A) 23
B) 24
C) 25
D) 26
E) 27
The right answer here is C. This is a straightforward arithmetic problem, but it highlights how with even simple problems, there are a number of steps you have to ensure you keep getting right.
We know the mean and number of packages. This tells us that the total weight must be 120 ounces. Since an ounce is 50 cents, we can say that the cost in weight is 60 dollars. If we add a dollar insurance on 5 packs, this becomes 65 dollars.
It's important to get to this stage as a checkpoint and work from here. 20% of $65 is $13, and we know that the two extra packages cost more than $13 if one is insured, and less than $13 if neither is insured. Since insurance is just a dollar, and we've seen no gradients of less than 50 cents, we have to get something like $12.5/$13.5
$12.5 without insurance translates to 25 ounces, which is what answer C is.
Remember that the challenge is rarely going to be an entirely hard question. What you have to ensure however, is consistency across a number of straightforward steps, and this can sometimes be hard to do.
- Matoo
General Discussion
The mean weight of 12 packages a retailer needs to ship on Monday is 1
[#permalink]
24 Aug 2019, 08:54
2
Kudos
1
Bookmarks
LeenaSai wrote:
The mean weight of 12 packages a retailer needs to ship on Monday is 10 ounces. The retailer pays 50 cents per ounce on shipping, plus one dollar per package for insurance on five of the packages. If two additional packages must be shipped on Monday, the percent increase on the retailer’s shipping cost for that day is less than 20% if neither package is insured and greater than 20% if one package is insured. What is the combined weight of the two additional packages, in ounces ?
A) 23
B) 24
C) 25
D) 26
E) 27
Arithmetic: Percents and word problem
A) 23
B) 24
C) 25
D) 26
E) 27
Arithmetic: Percents and word problem
Total cost for 12 packages including insurance for 5 packages is 65 ( 12 *.5 + 1*5) and 20% of 65= 13
Let cost of 2 additional packages be x ounces then without insurance cost is x*.5\(<\)13 \(\Rightarrow\) x<26
with insurance of 1 packet cost is x*.5 +1 \(>\)13\(\Rightarrow\) x>24, Hence 24<x<26 -> x=25, Ans =C