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If 2/5 of x is 8, then what is" 1/4 of x

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If 2/5 of x is 8, then what is" 1/4 of x  [#permalink]

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New post 28 Jul 2018, 10:41
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

94% (00:16) correct 6% (01:00) wrong based on 34 sessions

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If \(\frac{2}{5}\) of x is \(8\), then what is \(\frac{1}{4}\) of x?

a. 2

b. 3

c. 4

d. 5

e. 16

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Re: If 2/5 of x is 8, then what is" 1/4 of x  [#permalink]

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New post 28 Jul 2018, 10:53
AkshdeepS wrote:
If \(\frac{2}{5}\) of x is \(8\), then what is \(\frac{1}{4}\) of x?

a. 2

b. 3

c. 4

d. 5

e. 16


\(\frac{2}{5}\) of x is \(8\)

=> \(\frac{2}{5} * x\) = 8

=> x = \(8 * \frac{5}{2}\) = \(\frac{40}{2}\) = 20

=> \(\frac{1}{4} * x\) = \(\frac{1}{4} * 20\) = 5

Hence option D
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Re: If 2/5 of x is 8, then what is" 1/4 of x  [#permalink]

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New post 03 Aug 2018, 15:09
AkshdeepS wrote:
If \(\frac{2}{5}\) of x is \(8\), then what is \(\frac{1}{4}\) of x?

a. 2

b. 3

c. 4

d. 5

e. 16


(2/5)x = 8

x = 8(5/2)

x = 20

So 1/4 of 20 is 5.

Answer: D
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Re: If 2/5 of x is 8, then what is" 1/4 of x  [#permalink]

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New post 04 Aug 2018, 08:03
AkshdeepS wrote:
If \(\frac{2}{5}\) of x is \(8\), then what is \(\frac{1}{4}\) of x?

a. 2

b. 3

c. 4

d. 5

e. 16


\(\frac{2x}{5}\) = \(8\)

So, \(x = 20\)

Now, \(\frac{x}{4}\) = \(\frac{20}{4} = 5\), Answer must be (D)
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Re: If 2/5 of x is 8, then what is" 1/4 of x &nbs [#permalink] 04 Aug 2018, 08:03
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