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If 1 gallon of paint is needed to paint 450 square feet

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If 1 gallon of paint is needed to paint 450 square feet  [#permalink]

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New post 12 Jul 2018, 01:22
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A
B
C
D
E

Difficulty:

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Question Stats:

49% (00:55) correct 51% (01:13) wrong based on 71 sessions

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If 1 gallon of paint is needed to paint 450 square feet, how many gallons are needed to paint 600 square yards? (1 yard = 3feet)

A. 4
B. 8
C. 12
D. 16
E. 20
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If 1 gallon of paint is needed to paint 450 square feet  [#permalink]

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New post Updated on: 12 Jul 2018, 15:32
1
600 Sq Yds = 600 * 3 * 3 = 5400 Sq Ft. (Two 3 because of Sq Yd to Sq Ft)

450 Sq Ft requires 1 Gallon
5400 Sq Ft requires = 5400*1/450 = 12 Gallon

Answer C

Originally posted by bangu on 12 Jul 2018, 01:35.
Last edited by bangu on 12 Jul 2018, 15:32, edited 3 times in total.
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If 1 gallon of paint is needed to paint 450 square feet  [#permalink]

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New post 12 Jul 2018, 01:38
3
Lets convert the 600 square yards

1 yard = 3 feet

=> 600 square yards = \(600 * yard^2 = 600 * (3 feet)^2 = 600 * 9 (feet)^2 = 5400\) square feet

Gallons needed to paint 600 square yards i.e 5400 square feet = \(\frac{5400}{450} = 12\)

Hence option C
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Re: If 1 gallon of paint is needed to paint 450 square feet  [#permalink]

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New post 12 Jul 2018, 01:40
Karthik200 wrote:
If 1 gallon of paint is needed to paint 450 square feet, how many gallons are needed to paint 600 square yards? (1 yard = 3feet)

A. 4
B. 8
C. 12
D. 16
E. 20


450 sq feet requires 1 gallon
600 sq yard would require 600*9/450=12
it is a square yard which means 600*9 not 600*3
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Re: If 1 gallon of paint is needed to paint 450 square feet  [#permalink]

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New post 13 Jul 2018, 08:54
1 square yard = 9 square feet

Therefore 600 square yards = 5400 square feet

If 1 gallon is required to paint 450 square feet then 12 gallons will be required to paint 5400 square feet.

Option C is the correct answer.
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Re: If 1 gallon of paint is needed to paint 450 square feet &nbs [#permalink] 13 Jul 2018, 08:54
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