Author
Message
TAGS:
GMAT Club team member

Joined: 16 Mar 2009

Posts: 115

Location: Bologna, Italy

Followers: 40

Kudos [? ]:
388
[0 ] , given: 19

Fun question on arithmetic and logic [#permalink ]
12 Sep 2009, 23:30

Question Stats:

100% (01:59) correct

0% (00:00) wrong

based on 1 sessions
Another fun question. Guys, this is classics from the childhood

If a chicken and a half can lay an egg and a half in a minute and a half. How many eggs would three chickens lay in three minutes?

A)2

B)3

C)6

D)8

E)9

С) 6. Explanation: Three chickens would lay three eggs in a minute and half, hence in three minutes they would lay six eggs.

P.S. Another possible way of looking on the problem: The answer is 0, because if you have a chicken and a half, the chickens are dead

_________________

My Recent Posts: All GMAT CAT Practice Tests - links, prices, reviews Master thread - GMAT Prep classes links to reviews and ratings Review: GMATPrep (GMAT Prep) & PowerPrep (Power Prep) Tests Have trouble finding answers on this site? Ask me!

Founder

Affiliations: UA-1K, SPG-G, HH-D

Joined: 04 Dec 2002

Posts: 12009

Location: United States (WA)

GMAT 1 : 750 Q49 V42

GPA: 3.5

WE: Information Technology (Hospitality and Tourism)

Followers: 2157

Kudos [? ]:
7574
[0 ] , given: 3623

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 00:37
Spending 15 seconds on this question, I am hesitating between 8 and 9.

My gut tells me 8 and my head tells me 9.

I will go with 9, E

_________________

Founder of GMAT Club Just starting out with GMAT? Start here... | Want to know your GMAT Score? Try GMAT Score Estimator Need GMAT Book Recommendations? Best GMAT Books Co-author of the GMAT Club tests Have a blog? Feature it on GMAT Club !Get the best GMAT Prep Resources with GMAT Club Premium Membership

Manager

Joined: 01 Jan 2008

Posts: 227

Schools: Booth, Stern, Haas

Followers: 1

Kudos [? ]:
44
[0 ] , given: 2

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 00:41

I would go with C (6 eggs)

Senior Manager

Joined: 23 Jun 2009

Posts: 360

Location: Turkey

Schools: UPenn, UMich, HKS, UCB, Chicago

Followers: 5

Kudos [? ]:
94
[0 ] , given: 60

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 05:47

This is a classical work problem.

1,5 chickens lay 1,5 eggs in 1,5 minutes

that means

3 chickens lay 3 eggs in 1,5 minutes

and that means

3 chickens lay 6 eggs in 3 minutes

Manager

Joined: 25 Aug 2009

Posts: 177

Followers: 1

Kudos [? ]:
56
[0 ] , given: 12

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 08:07

\frac{3}{2} chickens = \frac{3}{2} eggs / \frac{3}{2}minutes => 2* \frac{3}{2} chickens = 2* \frac{3}{2} eggs / \frac{3}{2}minutes -- Multiply by 2 both sides=> 3 chickens = 2*3 eggs/2*\frac{3}{2} minutes -- Multiply by 2 in the right hand side( both numerator and denominator)=> 3 chickens = \frac{6 eggs}{3 minutes} Hence, answer is 6.

Senior Manager

Joined: 20 Mar 2008

Posts: 455

Followers: 1

Kudos [? ]:
64
[0 ] , given: 5

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 09:16

timetrader wrote:

Another fun question. Guys, this is classics from the childhood

If a chicken and a half can lay an egg and a half in a minute and a half. How many eggs would three chickens lay in three minutes?

A)2

B)3

C)6

D)8

E)9

P.S. Another possible way of looking on the problem: The answer is 0, because if you have a chicken and a half, the chickens are dead

Maybe the single alive chicken increases rate of production looking at the half dead chicken. Either make some more eggs or be someone's lunch!

Anyway, back to the problem, I go with 6.

Founder

Affiliations: UA-1K, SPG-G, HH-D

Joined: 04 Dec 2002

Posts: 12009

Location: United States (WA)

GMAT 1 : 750 Q49 V42

GPA: 3.5

WE: Information Technology (Hospitality and Tourism)

Followers: 2157

Kudos [? ]:
7574
[0 ] , given: 3623

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 14:07
Was I the only person who fell for 8 or 9?

_________________

Founder of GMAT Club Just starting out with GMAT? Start here... | Want to know your GMAT Score? Try GMAT Score Estimator Need GMAT Book Recommendations? Best GMAT Books Co-author of the GMAT Club tests Have a blog? Feature it on GMAT Club !Get the best GMAT Prep Resources with GMAT Club Premium Membership

Manager

Joined: 25 Aug 2009

Posts: 177

Followers: 1

Kudos [? ]:
56
[0 ] , given: 12

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 14:28

bb wrote:

Was I the only person who fell for 8 or 9?

But, you took 15 seconds only , and i am sure we, all took more than that..

..

Manager

Joined: 05 Jun 2009

Posts: 77

Followers: 1

Kudos [? ]:
2
[0 ] , given: 1

Re: Fun question on arithmetic and logic [#permalink ]
13 Sep 2009, 14:40

I feel for 9 initially too!

Re: Fun question on arithmetic and logic
[#permalink ]
13 Sep 2009, 14:40