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An electrical supplies store sells 140 power stabilizers every week.

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An electrical supplies store sells 140 power stabilizers every week.  [#permalink]

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New post 27 Nov 2016, 01:54
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An electrical supplies store sells 140 power stabilizers every week. If each power stabilizer costs the store $16, what is the minimum selling price per unit that will ensure a weekly profit of at least $5600 from sales of power stabilizers?

A. 24
B. 26
C. 40
D. 56
E. 60

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Re: An electrical supplies store sells 140 power stabilizers every week.  [#permalink]

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New post 27 Nov 2016, 03:05
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Bunuel wrote:
An electrical supplies store sells 140 power stabilizers every week. If each power stabilizer costs the store $16, what is the minimum selling price per unit that will ensure a weekly profit of at least $5600 from sales of power stabilizers?

A. 24
B. 26
C. 40
D. 56
E. 60

No of Quantity ( SP - CP ) = Total Profit


140 ( s - 16 ) = 5600

So, s - 16 = 40

So, s = 56

Hence, correct answer will be (D) 56
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An electrical supplies store sells 140 power stabilizers every week.  [#permalink]

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New post 27 Nov 2016, 03:52
Bunuel wrote:
An electrical supplies store sells 140 power stabilizers every week. If each power stabilizer costs the store $16, what is the minimum selling price per unit that will ensure a weekly profit of at least $5600 from sales of power stabilizers?

A. 24
B. 26
C. 40
D. 56
E. 60



Profit= Selling Prize - Cost Price
$5600 = (No. of units * SP per unit) - 140*16
5600 = 140* SP per unit - 140*16
5600 + 2240 = SP per unit = 7840/140 = 56
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Re: An electrical supplies store sells 140 power stabilizers every week.  [#permalink]

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New post 27 Nov 2016, 05:21
selling price - cost prize = profit

140(sp-16) = 5600

Sp = 40+16

56
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Re: An electrical supplies store sells 140 power stabilizers every week.  [#permalink]

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New post 30 Jan 2018, 11:22
1
Bunuel wrote:
An electrical supplies store sells 140 power stabilizers every week. If each power stabilizer costs the store $16, what is the minimum selling price per unit that will ensure a weekly profit of at least $5600 from sales of power stabilizers?

A. 24
B. 26
C. 40
D. 56
E. 60


We use the profit formula: revenue - cost = profit. We can create the following inequality in which n = selling price per unit:

140n - 140 x 16 ≥ 5600

140(n - 16) ≥ 5600

n - 16 ≥ 40

n ≥ 56

Answer: D
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An electrical supplies store sells 140 power stabilizers every week.  [#permalink]

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New post 31 Jan 2018, 11:41
Bunuel wrote:
An electrical supplies store sells 140 power stabilizers every week. If each power stabilizer costs the store $16, what is the minimum selling price per unit that will ensure a weekly profit of at least $5600 from sales of power stabilizers?

A. 24
B. 26
C. 40
D. 56
E. 60


Let \(x\) be the selling price of each unit. So, from the passage we have -

\(5600 = x * 140 - 16 * 140\)
\(x = 56\)
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An electrical supplies store sells 140 power stabilizers every week. &nbs [#permalink] 31 Jan 2018, 11:41
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