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# Fun question on arithmetic and logic

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Fun question on arithmetic and logic [#permalink]  12 Sep 2009, 23:30
00:00

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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

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

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

[Reveal] Spoiler:
I will go with 9, E

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Re: Fun question on arithmetic and logic [#permalink]  13 Sep 2009, 00:41
I would go with C (6 eggs)
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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
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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)

$$=> 3 chickens = \frac{6 eggs}{3 minutes}$$

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

[Reveal] Spoiler: OE:
Will be posted later

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

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Manager
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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.. ..
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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
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