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09 Feb 2018, 00:39
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Difficulty:

35% (medium)

Question Stats:

61% (00:55) correct 39% (00:53) wrong based on 41 sessions

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A certain type of siding for a house costs $10.50 per square yard. What does it cost for the siding for a wall 4 yards wide and 60 feet long? (A)$800

(B) $840 (C)$2520

(D) $3240 (E)$5040
[Reveal] Spoiler: OA

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09 Feb 2018, 01:03
B.

we need to know 1 yard=3feet.

Hence area = 4*60/3 = 80 yard²

Cost = 80*10.5 = $840 Bunuel I have a query. Are we supposed to know the conversion factor for yard? IMO question stem must mention that. _________________ Help with kudos if u found the post useful. Thanks Director Status: Preparing for GMAT Joined: 25 Nov 2015 Posts: 620 Location: India GPA: 3.64 Re: A certain type of siding for a house costs$10.50 per square yard. Wh [#permalink]

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09 Feb 2018, 02:11
Bunuel wrote:
A certain type of siding for a house costs $10.50 per square yard. What does it cost for the siding for a wall 4 yards wide and 60 feet long? (A)$800

(B) $840 (C)$2520

(D) $3240 (E)$5040

Cost per sq. yard siding = $10.50 3 ft = 1 yard 60 ft = 60/3 = 20 yard Area of wall = 20 x 4 = 80 sq. yard Cost of siding for the wall = 10.50 x 80 =$840

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Re: A certain type of siding for a house costs $10.50 per square yard. Wh [#permalink] Show Tags 10 Feb 2018, 00:30 Bunuel wrote: A certain type of siding for a house costs$10.50 per square yard. What does it cost for the siding for a wall 4 yards wide and 60 feet long?

(A) $800 (B)$840

(C) $2520 (D)$3240

(E) $5040 i think answer is B as 1 yard= 3 feet so 60/3= 20 so area of wall is 20*4= 80 and cost per square yard is 10.50. so 10.50*20= 840 Intern Joined: 31 Jan 2018 Posts: 16 Re: A certain type of siding for a house costs$10.50 per square yard. Wh [#permalink]

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10 Feb 2018, 06:47
Length of a wall= 60 feet= 20 yard

3 feet= 1 yard

60 feet= 1/3*60= 20 yard

Width of a wall= 4 yard
Area of a wall = 20*4= 80 yard

Cost of siding a wall= 80*10.50= 840

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Re: A certain type of siding for a house costs $10.50 per square yard. Wh [#permalink] Show Tags 10 Feb 2018, 08:00 Bunuel wrote: A certain type of siding for a house costs$10.50 per square yard. What does it cost for the siding for a wall 4 yards wide and 60 feet long?

(A) $800 (B)$840

(C) $2520 (D)$3240

(E) $5040 $$4*60*10.50$$ = 2520, Answer must be (C) _________________ Thanks and Regards Abhishek.... PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only ) Senior Manager Joined: 17 Oct 2016 Posts: 327 Location: India Concentration: Operations, Strategy GPA: 3.73 WE: Design (Real Estate) A certain type of siding for a house costs$10.50 per square yard. Wh [#permalink]

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Updated on: 10 Feb 2018, 21:23
Abhishek009 wrote:
Bunuel wrote:
A certain type of siding for a house costs $10.50 per square yard. What does it cost for the siding for a wall 4 yards wide and 60 feet long? (A)$800

(B) $840 (C)$2520

(D) $3240 (E)$5040

$$4*60*10.50$$

= 2520, Answer must be (C)

You are missing feet to yard conversion.
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Originally posted by Sasindran on 10 Feb 2018, 08:12.
Last edited by Sasindran on 10 Feb 2018, 21:23, edited 1 time in total.
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A certain type of siding for a house costs $10.50 per square yard. Wh [#permalink] Show Tags 10 Feb 2018, 19:29 Sasindran wrote: B. we need to know 1 yard=3feet. Hence area = 4*60/3 = 80 yard² Cost = 80*10.5 =$840

Bunuel I have a query. Are we supposed to know the conversion factor for yard? IMO question stem must mention that.

Hi Sasindran,

Allow me to add my two cents to your query.

As the Cost is mentioned in per Square Yard, we need to convert feet in Yard so that the area will be in Square Yard. IMO, the question need not mention that, as its already understood.

Hi Bunuel,

In GC, do we have any thread containing all the conversions which might be helpful for GMAT?
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Re: A certain type of siding for a house costs $10.50 per square yard. Wh [#permalink] Show Tags 10 Feb 2018, 20:33 rahul16singh28 wrote: Sasindran wrote: B. we need to know 1 yard=3feet. Hence area = 4*60/3 = 80 yard² Cost = 80*10.5 =$840

Bunuel I have a query. Are we supposed to know the conversion factor for yard? IMO question stem must mention that.

Hi Sasindran,

Allow me to add my two cents to your query.

As the Cost is mentioned in per Square Yard, we need to convert feet in Yard so that the area will be in Square Yard. IMO, the question need not mention that, as its already understood.

Hi Bunuel,

In GC, do we have any thread containing all the conversions which might be helpful for GMAT?

Thanks for your two cents.

But my query is different. I’m asking about the conversion factor. Yard is prevalent in US and not in the SI system of units. In SI system the equivalent unit can be considered as metre. So people from other countries may not know the conversion factor.

Sent from my iPhone using GMAT Club Forum mobile app
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Re: A certain type of siding for a house costs $10.50 per square yard. Wh [#permalink] Show Tags 11 Feb 2018, 01:19 rahul16singh28 wrote: Sasindran wrote: B. we need to know 1 yard=3feet. Hence area = 4*60/3 = 80 yard² Cost = 80*10.5 =$840

Bunuel I have a query. Are we supposed to know the conversion factor for yard? IMO question stem must mention that.

Hi Sasindran,

Allow me to add my two cents to your query.

As the Cost is mentioned in per Square Yard, we need to convert feet in Yard so that the area will be in Square Yard. IMO, the question need not mention that, as its already understood.

Hi Bunuel,

In GC, do we have any thread containing all the conversions which might be helpful for GMAT?

On the GMAT, the question itself will supply the relative conversions such as this one. Though you should have a few basic ones memorized: 1 hour = 60 minutes, ...

Check other Conversion problems to practice in Special Questions Directory.
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Re: A certain type of siding for a house costs $10.50 per square yard. Wh [#permalink] Show Tags 12 Feb 2018, 17:34 Bunuel wrote: A certain type of siding for a house costs$10.50 per square yard. What does it cost for the siding for a wall 4 yards wide and 60 feet long?

(A) $800 (B)$840

(C) $2520 (D)$3240

(E) $5040 Since 60 feet is 60/3 = 20 yards, the area of the wall is 4 x 20 = 80 yards^2. Thus, it will cost 80 x 10.5 = 840 dollars. Answer: B _________________ Jeffery Miller Head of GMAT Instruction GMAT Quant Self-Study Course 500+ lessons 3000+ practice problems 800+ HD solutions Re: A certain type of siding for a house costs$10.50 per square yard. Wh   [#permalink] 12 Feb 2018, 17:34
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