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j-k=2

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j-k=2 [#permalink]  13 May 2018, 14:26
Expert's post
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Question Stats:

95% (00:20) correct 4% (00:13) wrong based on 49 sessions
$$j - k = 2$$

$$k - 6 = 4$$

 Quantity A Quantity B $$j$$ $$10$$

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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VP
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Re: j-k=2 [#permalink]  01 Sep 2018, 06:21
1
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Carcass wrote:
j - k = 2

k - 6 = 4

 Quantity A Quantity B j 10

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

k - 6 = 4

or k = 10

Putting the value of K
j - k = 2

or j = 2 + k

or j = 2 + 10

or j = 12

QTY A > QTY B
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Re: j-k=2 [#permalink]  01 Oct 2019, 09:09
1
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Expert's post
Carcass wrote:
$$j - k = 2$$

$$k - 6 = 4$$

 Quantity A Quantity B $$j$$ $$10$$

Here's another approach:

Given:
$$j - k = 2$$
$$-6 + k = 4$$ aside: I rearranged the terms here so that we can see that the k's cancel each other

ADD the equations to get: j - 6 = 6
Add 6 to both sides: j = 12

We have:
Quantity A: 12
Quantity B: 10

Cheers,
Brent
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Re: j-k=2   [#permalink] 01 Oct 2019, 09:09
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