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Certain product reaches consumers after passing through 4 stages.

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Joined: 18 Feb 2019
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GMAT 1: 490 Q47 V13
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Certain product reaches consumers after passing through 4 stages.  [#permalink]

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New post 07 Mar 2019, 01:15
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The certain product reaches consumers after passing through 4 stages. First, the manufacturer decides the basic price, then it goes to the Packers at price x. After that to the wholesaler, then the retailer who finally sells it to the consumer at price y. If packers earn 20% profit, wholesaler 10%, and the retailer 20%, what is the value of y/x?

A. 1584/1000
B. 130/100
C. 1480/1000
D. 584/100
E. 480/100
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Re: Certain product reaches consumers after passing through 4 stages.  [#permalink]

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New post 07 Mar 2019, 06:22
kiran120680 wrote:
The certain product reaches consumers after passing through 4 stages. First, the manufacturer decides the basic price, then it goes to the Packers at price x. After that to the wholesaler, then the retailer who finally sells it to the consumer at price y. If packers earn 20% profit, wholesaler 10%, and the retailer 20%, what is the value of y/x?

A. 1584/1000
B. 130/100
C. 1480/1000
D. 584/100
E. 480/100



SO initial price = x, there is a 20% profit, then 10% and finally another 20% to become y..
thua \(x*\frac{120}{100}*\frac{110}{100}*\frac{120}{100}=y..............\frac{y}{x}=\frac{12*11*12}{1000}\)
You can calculate to get 1584/1000 or by simply looking at the product 11*12*12, you should look for multiple of 11 and multiple of 9.
Property of multiple of 11.... Difference of addition of alternate digits is 0 or multiple of 11 so 1584 means 1+8-(4+5)=9-9=0 so multiple of 11
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Re: Certain product reaches consumers after passing through 4 stages.  [#permalink]

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New post 07 Mar 2019, 06:58
kiran120680 wrote:
The certain product reaches consumers after passing through 4 stages. First, the manufacturer decides the basic price, then it goes to the Packers at price x. After that to the wholesaler, then the retailer who finally sells it to the consumer at price y. If packers earn 20% profit, wholesaler 10%, and the retailer 20%, what is the value of y/x?

A. 1584/1000
B. 130/100
C. 1480/1000
D. 584/100
E. 480/100


let price be 100$= x
then for each successive move in stage
we have
Packer = 100*1.2 = 120
wholesaler ; 120 * 1.1 = 132
retailer = 132*1.2 ; 158.4 =y
so y/x = 158.4/100 = 1584/1000
IMO A
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Re: Certain product reaches consumers after passing through 4 stages.   [#permalink] 07 Mar 2019, 06:58
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