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A rectangular floor that measures 8 meters by 10 meters is to be cover

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A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 14 Oct 2015, 21:19
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Question Stats:

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A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 14 Oct 2015, 22:28
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Number of carpets required to cover the entire floor = total floor area/ area of carpet
= 10x8 /2x2
= 20
Total cost of carpet squares = 20 x 12 = 240 $
Answer B
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 14 Oct 2015, 23:38
Bunuel wrote:
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


Kudos for a correct solution.


No. of Carpets required to Cover the floor = (8*10)/(2*2) = 20

Total Price to 20 pieces @$12 per piece = 12*20 = $240

Answer: option B
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 15 Oct 2015, 00:02
Forget conventional ways of solving math questions. In PS, IVY approach is the easiest and quickest way to find the answer.


A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


The width of the rectangular floor(8 m) is a multiple of one side of the square(2 m), and the length of the floor(10 m) is also a multiple of the side of the square. So the number of carpets to cover the floor is (8/2)*(10/2)=20.

The total cost is 20*12=$240.

The answer is, therefore, B.
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 17 Oct 2015, 13:06
1
Bunuel wrote:
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


Kudos for a correct solution.


8 * 10 = 80m^2
2 * 2 = 4m^2

80 / 4 = 20

20 * $12 = $240

Answer (B)
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A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 26 Apr 2016, 13:43
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\(Area of rectangular floor = 10*8 = 80 sq.metres\)

\(Area of small carpet squares = 2*2 = 4 sq.metres\)

\(Number of pieces required for carpeting = 80/4 = 20 pieces\)

\(cost of each piece = $12\)

\(Total cost = 20 *12 = $240\)

\(correct answer - B\)
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 27 Apr 2016, 08:49
1
Bunuel wrote:
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


Kudos for a correct solution.


A rectangular floor with the dimensions of 8 meters by 10 meters needs to be covered by carpet squares. Each carpet square measures 2 meters by 2 meters and costs $12 per square. We must determine the total cost to cover the floor in carpet squares. Let’s start by determining the area of the floor and the area of each carpet square.

Area of floor = 8 x 10 = 80

Area of each carpet square = 2 x 2 = 4

Thus, the total number of carpet squares needed to cover the floor = 80/4 = 20 carpet squares.

Since the cost of each carpet square is $12, the total cost for 20 carpet squares = 20 x $12 = $240

Answer: B
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 27 Apr 2016, 09:17
Bunuel wrote:
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


Kudos for a correct solution.


Area of rectangular floor = 8 * 10 =>80

Area of a piece of carpet square = 2 * 2 => 4

No of pieces of carpet square required is = 80/4 =>20


Thus the total cost of Carpet square required to cover the rectangular floor will be 20 * 12 = $240

Answer will be (B)
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 28 Apr 2016, 07:05
Bunuel wrote:
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


Kudos for a correct solution.


A rectangular floor with the dimensions of 8 meters by 10 meters needs to be covered by carpet squares. Each carpet square measures 2 meters by 2 meters and costs $12 per square. We must determine the total cost to cover the floor in carpet squares. Let’s start by determining the area of the floor and the area of each carpet square.

Area of floor = 8 x 10 = 80

Area of each carpet square = 2 x 2 = 4

Thus, the total number of carpet squares needed to cover the floor = 80/4 = 20 carpet squares.

Since the cost of each carpet square is $12, the total cost for 20 carpet squares = 20 x $12 = $240

Answer: B
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 23 Jun 2016, 15:45
No. of 2 by 2 Carpets required to Cover the floor = (8*10)/(2*2) = 20

Total Price to 20 pieces ($12 per piece) = 12*20 = $240
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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New post 17 Nov 2016, 09:31
Bunuel wrote:
A rectangular floor that measures 8 meters by 10 meters is to be covered with carpet squares that each measure 2 meters by 2 meters. If the carpet squares cost $12 apiece, what is the total cost for the number of carpet squares needed to cover the floor?

(A) $200
(B) $240
(C) $480
(D) $960
(E) $1,920


Kudos for a correct solution.

Area of floor=10*8=80
Area of carpet=2*2=4
So, carpet need to cover the floor=80/4=20 pieces
So, total cost of will be=20*12=240 dollars.
So, the correct answer is B.
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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover  [#permalink]

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Re: A rectangular floor that measures 8 meters by 10 meters is to be cover &nbs [#permalink] 29 Dec 2017, 21:48
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