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If a dress is sold for #3800.00 at 20% discount. what is its original price?

Mathematics
JAMB 2022

If a dress is sold for #3800.00 at 20% discount. what is its original price?

  • A. #3,000.00
  • B. #4,000.00
  • C. #5,000.00
  • D. #4,750.00
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Correct Answer: Option D
Explanation

It is given that the cost of the item reduces to #3800.00 after the discount on the item.

Let original price = x

x – (20% of x) = 100

⇒ x – 0.2x = 100

⇒ 0.8x = #3800

⇒ x = \(\frac{3800}{0.8}\)

⇒ x = 4,750

There is an explanation video available below.


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Explanation Video

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709