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After receiving a 25% discount, Amanda pays $240 for a TV. How much wo

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After receiving a 25% discount, Amanda pays $240 for a TV. How much wo  [#permalink]

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New post 27 Nov 2017, 23:15
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Re: After receiving a 25% discount, Amanda pays $240 for a TV. How much wo  [#permalink]

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New post 28 Nov 2017, 00:39
Bunuel wrote:
After receiving a 25% discount, Amanda pays $240 for a TV. How much would the TV cost without the discount?

A. $180
B. $300
C. $320
D. $360
E. $400


Let the original cost be x

So after discount of 25% Amanda pays $240

So x(0.75) = 240

Hence x=320

C

Or Test IT!!!

Let the Cost Price be 320 if she gets 25% discount then it will 240

Hence C
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After receiving a 25% discount, Amanda pays $240 for a TV. How much wo  [#permalink]

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New post 28 Nov 2017, 12:08
Bunuel wrote:
After receiving a 25% discount, Amanda pays $240 for a TV. How much would the TV cost without the discount?

A. $180
B. $300
C. $320
D. $360
E. $400

Agree with NandishSS , just want to add:

You can make the arithmetic easier if you change .75 to \(\frac{3}{4}\) (under pressure, I forget too often!).

\($240 =
\frac{3}{4}x\)

\(x =
\frac{4}{3}($240)\)

\(x = $320\)

Answer C
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Re: After receiving a 25% discount, Amanda pays $240 for a TV. How much wo  [#permalink]

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New post 29 Nov 2017, 18:15
Bunuel wrote:
After receiving a 25% discount, Amanda pays $240 for a TV. How much would the TV cost without the discount?

A. $180
B. $300
C. $320
D. $360
E. $400


We can let the regular price of the TV = n and create the equation:

0.75n = 240

n = 240/0.75 = 320

Answer: C
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Re: After receiving a 25% discount, Amanda pays $240 for a TV. How much wo  [#permalink]

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New post 29 Nov 2017, 19:07
75% of the product cost equals 240$.

100% can be calculated as

If 75% = 240 , 25% = 240/3 = 80$
Now 100% = 80$ * 4 = $320

Answer is C - 320$
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Re: After receiving a 25% discount, Amanda pays $240 for a TV. How much wo  [#permalink]

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New post 25 Aug 2018, 06:17
Top Contributor
Bunuel wrote:
After receiving a 25% discount, Amanda pays $240 for a TV. How much would the TV cost without the discount?

A. $180
B. $300
C. $320
D. $360
E. $400


Let x = the original price (BEFORE the discount)

If Amanda received a 25% discount, then she paid 75% of the original price.
In other words, she paid 75% of x
We're told she paid $240, so we can write: 75% of x = $240
Or we can write: 0.75x = 240

ASIDE: One approach here is to divide both sides by 0.75, but this can be a pain for many students.
Another option is to convert 0.75 to a fraction, and then go from there.
Here's what I mean.
We get: (3/4)x = 240
Multiply both sides by 4/3 to get: (4/3)(3/4)x = (4/3)240
Simplify: x = 320

Answer: C

Cheers,
Brent
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Re: After receiving a 25% discount, Amanda pays $240 for a TV. How much wo   [#permalink] 25 Aug 2018, 06:17
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