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# Lou recently painted his guest bedroom pale blue. the mixture of paint

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Joined: 12 Jan 2019
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Lou recently painted his guest bedroom pale blue. the mixture of paint  [#permalink]

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01 Feb 2019, 21:18
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25% (medium)

Question Stats:

75% (01:32) correct 25% (01:40) wrong based on 80 sessions

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Lou recently painted his guest bedroom pale blue. the mixture of paint he used contained 2/3 gallon of white paint for every 2 gallon of blue paint used. How many gallons of white paint will lou need in order to paint his living room the same shade of pale blue?

1) Lou will need twice as many gallons of paint for living room as he needed for the bedroom

2) Lou used 4 gallons of white paint for the guest bedroom
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Re: Lou recently painted his guest bedroom pale blue. the mixture of paint  [#permalink]

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01 Feb 2019, 22:21
2/3W : 2B
2W : 6B
Ratio of paint required is 2 (White) : 6 (Blue)

From statement 1:

Lou will need twice as many gallons of paint for living room as he needed for the bedroom. But we don't know the amount of paint required for a bedroom. Hence 1 is insufficient.

From statement 2:

Lou used 4 gallons for bedroom. But, no info about living room.
Hence 2 is insufficient.

Combining both : Living room requires 8 gallons of paint.
Hence Sufficient.

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Re: Lou recently painted his guest bedroom pale blue. the mixture of paint  [#permalink]

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02 Feb 2019, 01:25
Lou recently painted his guest bedroom pale blue. the mixture of paint he used contained 2/3 gallon of white paint for every 2 gallon of blue paint used. How many gallons of white paint will lou need in order to paint his living room the same shade of pale blue?

1) Lou will need twice as many gallons of paint for living room as he needed for the bedroom

2) Lou used 4 gallons of white paint for the guest bedroom

Statement 1: Insufficient. We need to know the quantity of paint used in the guest room only then can we calculate the gallons of paint that will be used in the living room.

Statement 2: Insufficient. We know the quantity of paint used in the guest room but to calculate the gallons of paint that will be used in the living room a relation between 2 rooms is needed.

Together they are sufficient to calculate the gallons of paint that will be used in the living room.

IMO C.
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Lou recently painted his guest bedroom pale blue. the mixture of paint  [#permalink]

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02 Feb 2019, 02:33
Given: $$\frac{White}{Blue} = \frac{2}{3} : 2 = 2 : 6$$ --> (total units = 8)

statement 1: L.R = 2 (B.R) , but there is no given value for the B.R gallons --> insufficient

statement 2: B.R = 4 , white for B.R = $$\frac{2*4}{8} = 1$$ gallon, but no given info related to the L.R --> insufficient

Combining 1 & 2: white for L.R = 2*1 = 2 --> sufficient
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Re: Lou recently painted his guest bedroom pale blue. the mixture of paint  [#permalink]

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07 Feb 2019, 09:54
Is this question from gmatprep?
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Re: Lou recently painted his guest bedroom pale blue. the mixture of paint  [#permalink]

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21 Feb 2019, 09:43
Nums99 wrote:
Lou recently painted his guest bedroom pale blue. the mixture of paint he used contained 2/3 gallon of white paint for every 2 gallon of blue paint used. How many gallons of white paint will lou need in order to paint his living room the same shade of pale blue?

1) Lou will need twice as many gallons of paint for living room as he needed for the bedroom

2) Lou used 4 gallons of white paint for the guest bedroom

We need a relationship between the guest bedroom and living room in terms of area (i.e. statement 1) AND the amount of paint needed for guest bedroom(i.e. statement 2); Since both the statements are needed the correct answer is option C
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Re: Lou recently painted his guest bedroom pale blue. the mixture of paint   [#permalink] 21 Feb 2019, 09:43
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