GMAT Changed on April 16th - Read about the latest changes here

It is currently 25 Apr 2018, 16:52

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

During a 31-day month that started on a Sunday, daily collections were

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 44656
During a 31-day month that started on a Sunday, daily collections were [#permalink]

Show Tags

New post 26 Dec 2017, 00:16
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

80% (01:54) correct 20% (01:32) wrong based on 40 sessions

HideShow timer Statistics

During a 31-day month that started on a Sunday, daily collections were made. The collections averaged 180 dollars per day on weekdays and 286 dollars per day on weekends. Which of the following was nearest the average (arithmetic mean) collection per day for the month?

A. 94
B. 185
C. 210
D. 233
E. 250
[Reveal] Spoiler: OA

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Expert Post
examPAL Representative
User avatar
B
Joined: 07 Dec 2017
Posts: 305
Re: During a 31-day month that started on a Sunday, daily collections were [#permalink]

Show Tags

New post 26 Dec 2017, 01:24
Bunuel wrote:
During a 31-day month that started on a Sunday, daily collections were made. The collections averaged 180 dollars per day on weekdays and 286 dollars per day on weekends. Which of the following was nearest the average (arithmetic mean) collection per day for the month?

A. 94
B. 185
C. 210
D. 233
E. 250


Since the answers are far apart, we'll estimate the answer.
This is an Alternative approach.

Let's look at 1 full week - 7 days.
Then the total collection is 180*5 + 286*2 = 900 + 572 = 1472.
Divided by 7 gives about $210 per day.
Since our month contains 4 full weeks and a few extra days, our estimate should be very close to the answer.
Looking at our options, we'll pick (C).
_________________

David
Senior tutor at examPAL
Signup for a free GMAT course
Image
Image
We won some awards:
Image
Join our next webinar (free)
Save up to $250 on examPAL packages (special for GMAT Club members)

Re: During a 31-day month that started on a Sunday, daily collections were   [#permalink] 26 Dec 2017, 01:24
Display posts from previous: Sort by

During a 31-day month that started on a Sunday, daily collections were

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.