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There was a series of two successive discounts of x% on the price

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Joined: 05 Jul 2018
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There was a series of two successive discounts of x% on the price  [#permalink]

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New post 05 Jul 2018, 01:35
There was a series of two successive discounts of x% on the price of a shirt. The final price of
the shirt was tagged at 36% of the original price. What is the value of x?
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Re: There was a series of two successive discounts of x% on the price  [#permalink]

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New post 05 Jul 2018, 04:40
gunavat wrote:
there was a series of two successive discounts of x% on the price of a shirt. the final price of the shirt was tagged at 36% of the original price. what is the value of x?



Hi gunavat


100 x 0.6= 60 60x0.6= 36

So that's short multiplication for 40% discount, two times in a row to get 36% of original price.

Questions should say that that two successive discounts of x% are equal, so that is more clear what questions is actually asking.

Answer is 40% discount, two times in a row.

I picked number 100, so I don't have to deal with two unknowns, that trick comes handy in this question.

What is the source of this question ?
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Re: There was a series of two successive discounts of x% on the price  [#permalink]

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New post 05 Jul 2018, 12:26
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gunavat wrote:
there was a series of two successive discounts of x% on the price of a shirt. the final price of the shirt was tagged at 36% of the original price. what is the value of x?

If the price of the shirt is 1, 36% of the original price will be 0.36

Hey gunavat

Welcome to GMATClub!
Please follow the RULES of the forum while posting questions.

Since we are talking of two successive discounts of x%, \(\frac{x}{100} * \frac{x}{100} * 1 = 0.36\)
Since we need the value of x, \(\frac{x^2}{10000} = 0.36\) -> \(x^2 = 3600\) -> \(x = \sqrt{3600} = 60\)

Hope this helps you!
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Re: There was a series of two successive discounts of x% on the price &nbs [#permalink] 05 Jul 2018, 12:26
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