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30% of 50 is what fraction of 75% of 80? Enter your answer a
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20 Nov 2017, 10:36
20 Nov 2017, 10:36
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95% (00:38) correct
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30% of 50 is what fraction of 75% of 80?
Enter your answer as a fraction. Fractions do not need to be in their simplest forms.
Enter your answer as a fraction. Fractions do not need to be in their simplest forms.
Show: :: OA
1/4
Re: 30% of 50 is what fraction of 75% of 80? Enter your answer a
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01 Apr 2018, 01:46
01 Apr 2018, 01:46
1
let \(a\) be that fraction then,
\(\frac{30}{100} * 50 = \frac{75}{100} * 80 * a\)
\(100\) cancels out so
\(30 * 50 = 75 * 80 * a\)
Hence, \(a = 30 * 50/ 75 * 80\)
\(a = \frac{1}{4}\)
\(\frac{30}{100} * 50 = \frac{75}{100} * 80 * a\)
\(100\) cancels out so
\(30 * 50 = 75 * 80 * a\)
Hence, \(a = 30 * 50/ 75 * 80\)
\(a = \frac{1}{4}\)
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Re: 30% of 50 is what fraction of 75% of 80? Enter your answer a
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17 May 2018, 06:48
17 May 2018, 06:48
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Bunuel wrote:
30% of 50 is what fraction of 75% of 80?
Enter your answer as a fraction. Fractions do not need to be in their simplest forms.
Enter your answer as a fraction. Fractions do not need to be in their simplest forms.
Show: :: OA
1/4
30% of 50
Since 10% of 50 = 5, we can conclude that 30% of 50 = 15
75% of 80
75% = 3/4
So, 75% of 80 = 3/4 of 80 = 60
So, our question becomes: 15 is what fraction of 60?
NOTE: For numeric entry questions involving fractions, ALL EQUIVALENT FRACTIONS are considered correct.
So, we could just enter 15/60 as our answer [since 15 = 15/60 of 60]
Or, if we could simplify 15/60 to get 1/4, which would also be correct.
Or we could enter 100/400 (which is equivalent to 1/4)
Etc
Answers: 1/4, 15/60, 100/400, 2/8, . . . etc [all would be considered correct]
Cheers,
Brent
