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Francisco’s MP3 player with a capacity of 64 gigabytes (GB)

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sandy
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Francisco’s MP3 player with a capacity of 64 gigabytes (GB) [#permalink] New post   27 May 2018, 03:55
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Francisco’s MP3 player with a capacity of 64 gigabytes (GB) was three-quarters full. He then deleted 25% of the data saved on the device before saving another 20 GB of new data to the device. The resulting amount of data saved is what percent of the capacity of Francisco’s MP3 player?

(A) 62.5 %
(B) 70 %
(C) 75 %
(D) 87.5 %
(E) 95 %
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Re: Francisco’s MP3 player with a capacity of 64 gigabytes (GB) [#permalink] New post   27 May 2018, 13:10
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Explanation

If Francisco’s MP3 player is three-quarters full, the current content equals \(\frac{3}{4} \times 64\) GB = 48 GB.

He then deleted 25%, or 12 GB, of that data, reducing the amount of data saved to 48 – 12 = 36 GB.

After saving 20 GB of new data to the device, it holds 36 + 20 = 56 GB. This is \(\frac{56}{64} \times 100 = 87.5%\) of the total capacity.
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Re: Francisco’s MP3 player with a capacity of 64 gigabytes (GB) [#permalink] New post   08 Sep 2021, 01:05
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Francisco’s MP3 player with a capacity of 64 gigabytes (GB) [#permalink]
08 Sep 2021, 01:05
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