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The cost of making a gold necklace is $10 less than four times the cos

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Math Expert
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Joined: 02 Sep 2009
Posts: 64248
The cost of making a gold necklace is $10 less than four times the cos  [#permalink]

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New post 03 Aug 2019, 22:18
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

96% (01:07) correct 4% (00:36) wrong based on 23 sessions

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D
Joined: 31 Oct 2013
Posts: 1489
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: The cost of making a gold necklace is $10 less than four times the cos  [#permalink]

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New post 03 Aug 2019, 23:01
Bunuel wrote:
The cost of making a gold necklace is $10 less than four times the cost of making a diamond ring. if the cost of making gold necklace is $50 then the total cost of making a gold necklace and a diamond ring is?

A. 50
B. 60
C. 65
D. 75
E. 80



Let D dollar be needed to make a diamond necklace

Cost of Gold necklace = 4D - 10

50 = 4D - 10

50 + 10 = 4D

D = 15.

Total cos of making a Gold and Diamond necklace: 15 + 50 = 65

C is the correct answer.
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Re: The cost of making a gold necklace is $10 less than four times the cos  [#permalink]

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New post 05 Aug 2019, 09:49
Bunuel wrote:
The cost of making a gold necklace is $10 less than four times the cost of making a diamond ring. if the cost of making gold necklace is $50 then the total cost of making a gold necklace and a diamond ring is?

A. 50
B. 60
C. 65
D. 75
E. 80


given
gold=4*diamond-10
50=4x-10
x=15
so gold +diamond ; 15+50 ; 65
IMO C
GMAT Club Bot
Re: The cost of making a gold necklace is $10 less than four times the cos   [#permalink] 05 Aug 2019, 09:49

The cost of making a gold necklace is $10 less than four times the cos

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