Last visit was: 05 Nov 2024, 17:32 It is currently 05 Nov 2024, 17:32

Close

GRE Prep 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 GRE 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
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Own Kudos [?]: 3209 [1]
Given Kudos: 172
Location: India
WE:Education (Education)
Send PM
Intern
Intern
Joined: 15 Feb 2021
Posts: 15
Own Kudos [?]: 19 [4]
Given Kudos: 1
Send PM
avatar
Intern
Intern
Joined: 04 Feb 2021
Posts: 1
Own Kudos [?]: 2 [2]
Given Kudos: 0
Send PM
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Own Kudos [?]: 3209 [0]
Given Kudos: 172
Location: India
WE:Education (Education)
Send PM
Re: In a get together, every 3 guests used a bowl of soup between them, [#permalink]
OA Explanation:

Easiest Approach: divide the options by 2, 3 and 4 separately and then see if they add up to 91 or not!

[We can eliminate A as it is not divisible by 3 and 4, and also option C as it is not divisible by 3]

A. \(\frac{70}{2} + \frac{70}{3} + \frac{70}{4} = 35 + 23.33 + 17.5 = 75.83\)

B. \(\frac{72}{2} + \frac{72}{3} + \frac{72}{4} = 36 + 24 + 18 = 78\)

C. \(\frac{80}{2} + \frac{80}{3} + \frac{80}{4} = 40 + 26.67 + 20 = 86.67\)

D. \(\frac{84}{2} + \frac{84}{3} + \frac{84}{4} = 42 + 28 + 21 = 91\)

E. Cannot be None of the Above, as we have a match as option D

Conventional Approach:

People sharing 1 bowl of Soup, Rice and Meat are in 3 : 2 : 4
We need to make number of people equal here, so we take LCM of 2, 3 and 4 = 12
i.e. (3)(4) : (2)(6) : (4)(3)

Now, 12 people require 4 + 6 + 3 bowls in total = 13 bowls
Since we have 91 bowls, we have a multiplication factor of 7 (13 x 7 = 91)

So Total number of people must be 12 x 7 = 84

Hence, option D
Prep Club for GRE Bot
Re: In a get together, every 3 guests used a bowl of soup between them, [#permalink]
Moderators:
GRE Instructor
77 posts
GRE Forum Moderator
37 posts
Moderator
1111 posts
GRE Instructor
228 posts

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