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If (d -3n)/(7n - d) = 1 which of the following statements describes

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If (d -3n)/(7n - d) = 1 which of the following statements describes  [#permalink]

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16 Jul 2018, 21:01
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15% (low)

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89% (00:44) correct 11% (00:45) wrong based on 48 sessions

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If $$\frac{(d -3n)}{(7n - d)}= 1$$ which of the following statements describes d in terms of n?

A. d is 4 less than n.

B. d is 4 more than n.

C. d is $$\frac{3}{7}$$ of n.

D. d is 2 times n.

E. d is 5 times n.

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Re: If (d -3n)/(7n - d) = 1 which of the following statements describes  [#permalink]

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16 Jul 2018, 22:49
Bunuel wrote:
If $$\frac{(d -3n)}{(7n - d)}= 1$$ which of the following statements describes d in terms of n?

A. d is 4 less than n.

B. d is 4 more than n.

C. d is $$\frac{3}{7}$$ of n.

D. d is 2 times n.

E. d is 5 times n.

Given, $$\frac{(d -3n)}{(7n - d)}= 1$$
Or, d-3n=7n-d
Or, 2d=10n
Or, d=5n
Or, d is 5 times n.

Ans. (E)
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Re: If (d -3n)/(7n - d) = 1 which of the following statements describes  [#permalink]

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17 Jul 2018, 00:09
(d -3n) / (7n - d) = 1
d - 3n = 7n - d
2d = 10n
d = 5n i.e, d is 5 times of n

Hence, E.
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Re: If (d -3n)/(7n - d) = 1 which of the following statements describes  [#permalink]

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17 Jul 2018, 04:22
Bunuel wrote:
If $$\frac{(d -3n)}{(7n - d)}= 1$$ which of the following statements describes d in terms of n?

A. d is 4 less than n.

B. d is 4 more than n.

C. d is $$\frac{3}{7}$$ of n.

D. d is 2 times n.

E. d is 5 times n.

Given

$$\frac{(d -3n)}{(7n - d)}= 1$$

d-3n = 7n-d

2d = 10n

d = 5n.

So, d is basically 5 times of n.

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Re: If (d -3n)/(7n - d) = 1 which of the following statements describes  [#permalink]

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17 Jul 2018, 06:58
Bunuel wrote:
If $$\frac{(d -3n)}{(7n - d)}= 1$$ which of the following statements describes d in terms of n?

A. d is 4 less than n.

B. d is 4 more than n.

C. d is $$\frac{3}{7}$$ of n.

D. d is 2 times n.

E. d is 5 times n.

$$\frac{(d -3n)}{(7n - d)}= 1$$

Or, $$d - 3n = 7n - d$$

Or, $$2d = 10n$$

Or, $$d = 5n$$ ,Answer must be (E)
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Re: If (d -3n)/(7n - d) = 1 which of the following statements describes  [#permalink]

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19 Jul 2018, 17:17
Bunuel wrote:
If $$\frac{(d -3n)}{(7n - d)}= 1$$ which of the following statements describes d in terms of n?

A. d is 4 less than n.

B. d is 4 more than n.

C. d is $$\frac{3}{7}$$ of n.

D. d is 2 times n.

E. d is 5 times n.

Simplifying and solving for d, we have:

d - 3n = 7n - d

2d = 10n

d = 5n

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Re: If (d -3n)/(7n - d) = 1 which of the following statements describes   [#permalink] 19 Jul 2018, 17:17
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