Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

 It is currently 18 Jul 2019, 20:54

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

## Events & Promotions

### Show Tags

27 Feb 2018, 23:40
00:00

Difficulty:

25% (medium)

Question Stats:

79% (00:59) correct 21% (00:57) wrong based on 38 sessions

### HideShow timer Statistics

What was the original price of a radio that sold for $70 during a 20%-off sale? (A)$84

(B) $56 (C)$87.50

(D) $92 (E)$90

_________________
Senior PS Moderator
Joined: 26 Feb 2016
Posts: 3360
Location: India
GPA: 3.12
What was the original price of a radio that sold for $70 during a 20% [#permalink] ### Show Tags 28 Feb 2018, 00:57 Bunuel wrote: What was the original price of a radio that sold for$70 during a 20%-off sale?

(A) $84 (B)$56

(C) $87.50 (D)$92

(E) $90 If the discount of 20% is applied to a product of price$100, the cost at which the product is sold is $80! The proportion will be SP:80 - Discount:20 - MP:100 (4x - x - 5x) We are given the cost of the radio was$70 after a discount of 20% was applied.

Therefore, the marked price on the radio was $$70*\frac{5}{4} = \frac{350}{4} = 87.5$$(Option C)
_________________
You've got what it takes, but it will take everything you've got
e-GMAT Representative
Joined: 04 Jan 2015
Posts: 2943
Re: What was the original price of a radio that sold for $70 during a 20% [#permalink] ### Show Tags 28 Feb 2018, 11:15 Solution Let’s assume the original price of the radio to be x. After 20% off, the price of radio becomes$70.

Thus, we can write:

• $70= Original price- 20% of original price. •$70= x- 20/100 * x
• $70= x- 0.2 x •$70= 0.8x
• x= $70/.8 • X=$87.50

Therefore, the original price of the radio was $87.50. Answer: C _________________ Senior SC Moderator Joined: 22 May 2016 Posts: 3077 What was the original price of a radio that sold for$70 during a 20%  [#permalink]

### Show Tags

28 Feb 2018, 11:55
Bunuel wrote:
What was the original price of a radio that sold for $70 during a 20%-off sale? (A)$84

(B) $56 (C)$87.50

(D) $92 (E)$90

Using answer choices

Start with C) Original price = $87.50 Long way: Dollar amount "off" = (Original P - 20% of original P) 20% of P: $$\frac{2}{10}*(87.5)=(8.75 * 2)= 17.5$$ Sale price: $$(87.50 - 17.50) = 70$$ That's a match. Short way: 20% off = 80% of original price $$\frac{8}{10}*87.5=(8.75 * 8)= 70$$ Answer C _________________ SC Butler has resumed! Get two SC questions to practice, whose links you can find by date, here. Tell me, what is it you plan to do with your one wild and precious life? -- Mary Oliver Target Test Prep Representative Status: Founder & CEO Affiliations: Target Test Prep Joined: 14 Oct 2015 Posts: 6925 Location: United States (CA) Re: What was the original price of a radio that sold for$70 during a 20%  [#permalink]

### Show Tags

01 Mar 2018, 18:32
Bunuel wrote:
What was the original price of a radio that sold for $70 during a 20%-off sale? (A)$84

(B) $56 (C)$87.50

(D) $92 (E)$90

We can let n = the original price and create the following equation:

70 = 0.8n

87.5 = n

Answer: C
_________________

# Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

Re: What was the original price of a radio that sold for $70 during a 20% [#permalink] 01 Mar 2018, 18:32 Display posts from previous: Sort by # What was the original price of a radio that sold for$70 during a 20%

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne