Author 
Message 
TAGS:

Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58422

To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 03:03
Question Stats:
68% (01:01) correct 32% (01:15) wrong based on 44 sessions
HideShow timer Statistics
Competition Mode Question To be considered grade AA, an egg must weigh between 75 and 90 grams, including the shell. Shells of grade AA eggs weigh between 3 and 5 grams. What is the smallest possible mass, in grams, of a 12egg omelet, assuming that only grade AA eggs are used, the shells are all discarded, and no mass is lost in the cooking process? A. 800 B. 840 C. 864 D. 900 E. 1,080
Official Answer and Stats are available only to registered users. Register/ Login.
_________________




Manager
Joined: 17 Jan 2019
Posts: 111

To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
Updated on: 07 Sep 2019, 09:43
75(lightest weight of grade AA egg)  5(heaviest shell mass)=70 70*12=840
Originally posted by joohwangie on 28 Aug 2019, 03:15.
Last edited by joohwangie on 07 Sep 2019, 09:43, edited 1 time in total.




NUS School Moderator
Joined: 18 Jul 2018
Posts: 1020
Location: India
Concentration: Finance, Marketing
WE: Engineering (Energy and Utilities)

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 03:16
AA egg with shell weighs 7590 grams. Eggshell weighs around 35 grams. AA egg weight range is 7087 without the shell. 12 AA egg min weight = 70*12 = 840. B is the answer.
_________________
Press +1 Kudos If my post helps!



Senior Manager
Joined: 18 May 2019
Posts: 372

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 03:24
We know that a grade AA weighs between 75g and 90g including the shell. A shell weighs between 3g and 5g.
To know the smallest size of egg possible in 12egg omelette, we must use the smallest possible size and the largest possible 5g.
So the twelve egg omelette should have a mass of (755)*12 = 70*12 = 840g.
Answer is therefore B.



Senior Manager
Joined: 07 Mar 2019
Posts: 331
Location: India
WE: Sales (Energy and Utilities)

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 03:57
We have 75 < E + S < 90 and 3 < S < 5 where E = weight of egg without shell S = weight of shell Smallest possible mass of 12 egg omelet = ? Since Omelet would weigh the least if shell weighs max. i.e. S = 5 Thus, we have 75 < E + 5 < 90 755 < E < 90 – 5 70 < E < 85 Therefore, possible least mass of 12 egg omelet = 70*12 = 840 Answer(B).
_________________
Ephemeral Epiphany..!
GMATPREP1 590(Q48,V23) March 6, 2019 GMATPREP2 610(Q44,V29) June 10, 2019 GMATPREPSoft1 680(Q48,V35) June 26, 2019



Intern
Joined: 28 Aug 2019
Posts: 2

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 04:25
Minimum waight of 12 egg=12*75 =900 12 eggs shell's maximum weight =12*5 =60 After removing 12 eggs shell's wight= 90060 =840 smallest weight
Posted from my mobile device



eGMAT Representative
Joined: 04 Jan 2015
Posts: 3078

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 05:03
Solution Given
• A grade AA egg weighs between 75 and 90 grams including the shell. • Shells of grade AA eggs weigh between 3 and 5 grams. To find• Smallest possible mass, in grams, of a 12egg omelette if all grade AA eggs are used.
Approach
To get the smallest possible mass of the omelette, all the eggs should be of the smallest weight possible. To make an omelette, the shell of an egg is removed. Then possible weight of the egg excluding the shell can be: • 753 = 72 grams • 755= 70 grams • 90 – 3 = 87 grams • 905 = 85 grams The smallest weight of an egg grade AA egg is 70 grams. Hence, the weight of 12 egg omelette = 12 * 70 = 840 grams. Hence, the correct answer is option B.
_________________



GMAT Club Legend
Joined: 18 Aug 2017
Posts: 5032
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)

To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
Updated on: 29 Aug 2019, 06:35
lowest possible weight ; 755 ; 70 * 12 ; 840 IMO B
To be considered grade AA, an egg must weigh between 75 and 90 grams, including the shell. Shells of grade AA eggs weigh between 3 and 5 grams. What is the smallest possible mass, in grams, of a 12egg omelet, assuming that only grade AA eggs are used, the shells are all discarded, and no mass is lost in the cooking process?
A. 800 B. 840 C. 864 D. 900 E. 1,080
Originally posted by Archit3110 on 28 Aug 2019, 05:27.
Last edited by Archit3110 on 29 Aug 2019, 06:35, edited 1 time in total.



SVP
Joined: 03 Jun 2019
Posts: 1746
Location: India

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 05:50
Given: 1. To be considered grade AA, an egg must weigh between 75 and 90 grams, including the shell. 2. Shells of grade AA eggs weigh between 3 and 5 grams. Asked: What is the smallest possible mass, in grams, of a 12egg omelet, assuming that only grade AA eggs are used, the shells are all discarded, and no mass is lost in the cooking process? A. 800 B. 840 C. 864 D. 900 E. 1,080 Since shells are discarded, the smallest mass of 1egg minus shell = 75  5 = 70 grams Smallest possible mass of 12egg omelet = 12 * 70 = 840 grams IMO B
_________________
"Success is not final; failure is not fatal: It is the courage to continue that counts." Please provide kudos if you like my post. Kudos encourage active discussions. My GMAT Resources:  Efficient LearningAll you need to know about GMAT quantTele: +911140396815 Mobile : +919910661622 Email : kinshook.chaturvedi@gmail.com



Manager
Joined: 01 Mar 2019
Posts: 177
Location: India
Concentration: Strategy, Social Entrepreneurship
GPA: 4

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 06:05
eggs weight range 7590 eggs shell weight range 35 total eggs weight for 12 eggs with shell 9001080 total eggs shell weight for 12 eggs with shell is 3660 for the least possible weight only possibility is 90060 = 840 OA: (B)
_________________
Appreciate any KUDOS given



Senior Manager
Joined: 10 Aug 2018
Posts: 336
Location: India
Concentration: Strategy, Operations
WE: Operations (Energy and Utilities)

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 06:16
IMO B is the answer. Because for smallest possible omelet without shell, the shell has to be heaviest i.e. 5gms. Hence egg will be of 70gms. 12x70=840gms.To be considered grade AA, an egg must weigh between 75 and 90 grams, including the shell. Shells of grade AA eggs weigh between 3 and 5 grams. What is the smallest possible mass, in grams, of a 12egg omelet, assuming that only grade AA eggs are used, the shells are all discarded, and no mass is lost in the cooking process?
_________________
On the way to get into the Bschool and I will not leave it until I win. WHATEVER IT TAKES. " I CAN AND I WILL"
GMAT:[640 Q44, V34, IR4, AWA5]



Director
Joined: 18 Dec 2017
Posts: 527
Location: United States (KS)

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 08:26
12 eggs. You need minimum mass. Consider each to weigh 75g and consider each to have a shell of 5g to have the least possible value of 70g mass for each of the egg. 12*70 is 840g. IMO B
_________________
 The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long  Software Tester currently in USA ( )



Intern
Joined: 08 Jul 2019
Posts: 16
Location: India

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 10:50
75<weight of egg<90 3<weight of shell<5 Max (weight of eggweight of shell)=87 Min (weight of eggweight of shell)=70
so min weight of 12 eggs=70*12=840



Intern
Joined: 08 Apr 2019
Posts: 8

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
28 Aug 2019, 16:15
Here's what I got:
12 * 75 = 900
3 * 12 = 36
900  36 = 864
C



Target Test Prep Representative
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8125
Location: United States (CA)

Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
Show Tags
02 Sep 2019, 19:20
Bunuel wrote: Competition Mode Question To be considered grade AA, an egg must weigh between 75 and 90 grams, including the shell. Shells of grade AA eggs weigh between 3 and 5 grams. What is the smallest possible mass, in grams, of a 12egg omelet, assuming that only grade AA eggs are used, the shells are all discarded, and no mass is lost in the cooking process? A. 800 B. 840 C. 864 D. 900 E. 1,080 Since the smallest mass of an egg without the shell is 75  5 = 70 grams, the smallest possible mass of a 12egg omelet is 12 x 70 = 840 grams. Answer: B
_________________
5star 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.




Re: To be considered grade AA, an egg must weigh between 75 and 90 grams
[#permalink]
02 Sep 2019, 19:20






