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Carol buys x widgets at a cost of y cents per widget. She packages the

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Carol buys x widgets at a cost of y cents per widget. She packages the  [#permalink]

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New post 05 Mar 2019, 04:36
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A
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Difficulty:

  65% (hard)

Question Stats:

33% (02:45) correct 67% (01:37) wrong based on 15 sessions

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Carol buys x widgets at a cost of y cents per widget. She packages them, q widgets per box, and sells them at a price of z dollars per box. What is the amount of profit, in dollars, that she makes on the sale (profit = sales revenue − cost)?


A. 100qz − xy

B. xz/q - xy/100

C. qz - xy/100

D. 100z/q - xy

E. xz/q - xy

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Carol buys x widgets at a cost of y cents per widget. She packages the  [#permalink]

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New post Updated on: 05 Mar 2019, 05:56
Cost of x widgets= xy/100(converting cents to dollars)
Selling price of q widgets= qz
Therefore profit= xz/q - xy/100

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Originally posted by sumi747 on 05 Mar 2019, 05:14.
Last edited by sumi747 on 05 Mar 2019, 05:56, edited 1 time in total.
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Re: Carol buys x widgets at a cost of y cents per widget. She packages the  [#permalink]

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New post 05 Mar 2019, 05:45
Cost of x widgets in dollars = xy/100

No. of boxes = x/q (as q widgets per box)

Profit = xz/q - xy/100

Option B

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Carol buys x widgets at a cost of y cents per widget. She packages the  [#permalink]

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New post 05 Mar 2019, 06:12
Bunuel wrote:
Carol buys x widgets at a cost of y cents per widget. She packages them, q widgets per box, and sells them at a price of z dollars per box. What is the amount of profit, in dollars, that she makes on the sale (profit = sales revenue − cost)?


A. 100qz − xy

B. xz/q - xy/100

C. qz - xy/100

D. 100z/q - xy

E. xz/q - xy


Cost price = x * y/100 = xy/100

Number of boxes = x/q

Selling price = xz/q

Profit = xz/q - xy/100.

B is the correct answer.

C is the correct answer.
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Re: Carol buys x widgets at a cost of y cents per widget. She packages the  [#permalink]

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New post 05 Mar 2019, 11:08
cost of widgets
x*y/100
boxes x/q
SP = x*z/q
so profit

xz/q - xy/100
IMO B


Bunuel wrote:
Carol buys x widgets at a cost of y cents per widget. She packages them, q widgets per box, and sells them at a price of z dollars per box. What is the amount of profit, in dollars, that she makes on the sale (profit = sales revenue − cost)?


A. 100qz − xy

B. xz/q - xy/100

C. qz - xy/100

D. 100z/q - xy

E. xz/q - xy

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Re: Carol buys x widgets at a cost of y cents per widget. She packages the   [#permalink] 05 Mar 2019, 11:08
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Carol buys x widgets at a cost of y cents per widget. She packages the

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