GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 21 Oct 2018, 07:35

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

Four people shared a dinner with an $80 bill and tipped the waiter 15

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50010
Four people shared a dinner with an $80 bill and tipped the waiter 15  [#permalink]

Show Tags

New post 08 Jun 2018, 23:59
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (00:41) correct 14% (00:58) wrong based on 44 sessions

HideShow timer Statistics

Four people shared a dinner with an $80 bill and tipped the waiter 15 percent of this amount. If each person contributed equally to paying the bill and tip, how much did each person pay?

(A) $20.00
(B) $23.00
(C) $23.75
(D) $24.00
(E) $25.00

_________________

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

Manager
Manager
avatar
B
Joined: 24 Jun 2013
Posts: 99
GMAT ToolKit User
Re: Four people shared a dinner with an $80 bill and tipped the waiter 15  [#permalink]

Show Tags

New post 09 Jun 2018, 02:03
Bunuel wrote:
Four people shared a dinner with an $80 bill and tipped the waiter 15 percent of this amount. If each person contributed equally to paying the bill and tip, how much did each person pay?

(A) $20.00
(B) $23.00
(C) $23.75
(D) $24.00
(E) $25.00


total cost to foúr people = $80 + 0.15 * 80 ( waiters tip) = $92
cost to each person as they contribute equal amount = \(92/4\) = $23 B
_________________

If this post helped you learn something pls give kudos

examPAL Representative
User avatar
G
Joined: 07 Dec 2017
Posts: 724
Re: Four people shared a dinner with an $80 bill and tipped the waiter 15  [#permalink]

Show Tags

New post 09 Jun 2018, 03:48
Bunuel wrote:
Four people shared a dinner with an $80 bill and tipped the waiter 15 percent of this amount. If each person contributed equally to paying the bill and tip, how much did each person pay?

(A) $20.00
(B) $23.00
(C) $23.75
(D) $24.00
(E) $25.00


Since the calculation we're asked to do is straightforward, we'll just do it.
This is a Precise approach.

One way calculate is as shown above: the total is 80 +15% = 80 * 1.15 = 80 * (1 + 0.1 + 0.05) = 80 + 8 + 4 = 92 and dividing this by 4 gives 13.

An easier way to calculate is to look at each person individually:
Each paid a bill of 80/4 = 20 and 15% of 20 is 3. So each person paid 20 + 3 = $23.

(B) is our answer.
_________________

Image
Sign up for 7-day free trial
Image

I am a CR Expert - Ask Me ANYTHING about CR
I am a DS Expert - Ask Me ANYTHING about DS


Watch free GMAT tutorials in Math, Verbal, IR, and AWA.

GMAT test takers: Watch now the GMAC interview with the people who write the GMAT test!
We discussed the chances of improving a GMAT score; how important the first questions on the test are; what to do if you don’t have enough time to complete a whole section; and more.

You can watch all the action from the interview here.

GMAT Club Bot
Re: Four people shared a dinner with an $80 bill and tipped the waiter 15 &nbs [#permalink] 09 Jun 2018, 03:48
Display posts from previous: Sort by

Four people shared a dinner with an $80 bill and tipped the waiter 15

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.