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

It is currently 23 Oct 2019, 18:55

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

In a certain month, a pizzeria sold 75 pizzas in the first week, twice

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

Hide Tags

Find Similar Topics 
Senior RC Moderator
User avatar
V
Joined: 02 Nov 2016
Posts: 4150
GPA: 3.39
In a certain month, a pizzeria sold 75 pizzas in the first week, twice  [#permalink]

Show Tags

New post 04 Mar 2019, 14:38
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

75% (01:48) correct 25% (02:30) wrong based on 36 sessions

HideShow timer Statistics

In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second. What is the average number, per week, of pizzas sold by the pizzeria?

A. 100
B. 105
C. 110
D. 115
E. 120

_________________
Most Helpful Expert Reply
e-GMAT Representative
User avatar
V
Joined: 04 Jan 2015
Posts: 3092
Re: In a certain month, a pizzeria sold 75 pizzas in the first week, twice  [#permalink]

Show Tags

New post 04 Mar 2019, 22:13
1

Solution



Given:
    • In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second.

To find:
    • The average number of pizzas sold by the pizzeria per week.

Approach and Working:
    • Number of pizzas sold on the first week = 75
    • Number of pizzas sold on the second week = 75 x 2 = 150
    • Number of pizzas sold on the first week = 75 + 2/3 x 75 = 75 + 50 = 125
    • Number of pizzas sold on the first week = 150 x 3/5 = 90

Total number of pizzas sold in the whole month = (75 + 150 + 125 + 90) = 440
    • Therefore, average number of pizzas sold in the month = 440/4 = 110

Hence, the correct answer is option C.

Answer: C

Image

_________________
General Discussion
Manager
Manager
avatar
G
Joined: 12 Apr 2011
Posts: 149
Location: United Arab Emirates
Concentration: Strategy, Marketing
Schools: CBS '21, Yale '21, INSEAD
GMAT 1: 670 Q50 V31
GMAT 2: 720 Q50 V37
WE: Marketing (Telecommunications)
Re: In a certain month, a pizzeria sold 75 pizzas in the first week, twice  [#permalink]

Show Tags

New post 04 Mar 2019, 21:15
1
SajjadAhmad wrote:
In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second. What is the average number, per week, of pizzas sold by the pizzeria?

A. 100
B. 105
C. 110
D. 115
E. 120


75
2*75 = 150
75+((2/3)*75) = 125
3/5 * 150 = 90

75+150+125+90 = 440

440/4 = 110

Hence C is the correct answer.
_________________
Hit Kudos if you like what you see!
GMAT Club Legend
GMAT Club Legend
User avatar
D
Joined: 18 Aug 2017
Posts: 5043
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member
Re: In a certain month, a pizzeria sold 75 pizzas in the first week, twice  [#permalink]

Show Tags

New post 06 Mar 2019, 02:54
week 1 = 75
week2 = 150
week 3 = 50+75 = 125
week 4= 90
sum = 440
avg - 440/4
IMO C 110

SajjadAhmad wrote:
In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second. What is the average number, per week, of pizzas sold by the pizzeria?

A. 100
B. 105
C. 110
D. 115
E. 120
Target Test Prep Representative
User avatar
D
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8137
Location: United States (CA)
Re: In a certain month, a pizzeria sold 75 pizzas in the first week, twice  [#permalink]

Show Tags

New post 08 Mar 2019, 08:05
SajjadAhmad wrote:
In a certain month, a pizzeria sold 75 pizzas in the first week, twice as many in the second week as in the first, two thirds more in the third week than in the first, and three fifths as many in the fourth week as in the second. What is the average number, per week, of pizzas sold by the pizzeria?

A. 100
B. 105
C. 110
D. 115
E. 120


We see that the pizzeria sold 150 pizzas in the 2nd week and (1 + 2/3) x 75 = 5/3 x 75 = 125 in the 3rd week and 3/5 x 150 = 90 in the 4th week.

So the average number of pizzas sold per week was:

(75 + 150 + 125 + 90)/4 = 440/4 = 110

Answer: C
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: In a certain month, a pizzeria sold 75 pizzas in the first week, twice   [#permalink] 08 Mar 2019, 08:05
Display posts from previous: Sort by

In a certain month, a pizzeria sold 75 pizzas in the first week, twice

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





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