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Bunuel
When positive integer N is divided by positive integer J, the remainder is 14. If N/J = 134.08, what is value of J?

A. 22
B. 56
C. 78
D. 112
E. 175


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When a number is divided by another number, we can represent it as : Dividend = Quotient * Divisor + Remainder
So, Dividend/Divisor = Quotient + Remainder/Divisor
Given that N/J = 134.08
Here 134 is the quotient.
Given that Remainder = 14
So, 134.08 = 134 + 14/J
So, J = 175

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Bunuel
When positive integer N is divided by positive integer J, the remainder is 14. If N/J = 134.08, what is value of J?

A. 22
B. 56
C. 78
D. 112
E. 175


Kudos for a correct solution.

comparing possible fractional values of .08 and answer choices,
note 2/25 and 175, a multiple of 25
confirming,
2/25*175=14 remainder
175
E
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Hi All,

To start, this question is a 'lift' of an Official Guide question:
OG2018 and OG2019 pg. 170, question #154

We're told that P and J are positive INTEGERS, when P is divided by J, the REMAINDER is 14 and N/J = 134.08. We're asked for the value of J. This question has a great 'math shortcut' built into it that can help you to avoid a calculation-heavy approach, but you have to pay careful attention to the answer choices.

Since N and J are INTEGERS and N/J = 134.08, we know that N = 134.08(J). Thus, whatever J is, when we multiply that number by 134.08 we end up with an INTEGER. This means that J has to 'cancel out' the decimal point. Put differently, the units digit of J multiplied by 8 has to create a number that ENDS in a 0. Looking at the 5 answer choices, there's only one answer that would do that...

Final Answer:
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Bunuel
When positive integer N is divided by positive integer J, the remainder is 14. If N/J = 134.08, what is value of J?

A. 22
B. 56
C. 78
D. 112
E. 175
\(N,J \ge 1\,\,\,{\rm{ints}}\)

Let´s consider what the Division Algorithm say!

\(N = QJ + 14\,\,,\,\,\,\left\{ \matrix{\\
\,Q\,\,{\mathop{\rm int}} \hfill \cr \\
\,J \ge 15\,\,\,\,\,,\,\,\,\,\,\,? = J\,\, \hfill \cr} \right.\,\,\,\,\,\,\,\,\,\left( * \right)\)

\(134.08 = {N \over J} = Q + {{14} \over J}\,\,\,\,\,\,\,\,\mathop \Rightarrow \limits^{\left( * \right)} \,\,\,\,\,\,\left\{ \matrix{\\
\,Q = 134 \hfill \cr \\
\,{{14} \over J} = 0.08 = {8 \over {100}}\,\,\,\,\, \Rightarrow \,\,\,\,\,? = J = {{14 \cdot 100} \over 8} = 7 \cdot 25 = 175 \hfill \cr} \right.\,\,\,\,\)


This solution follows the notations and rationale taught in the GMATH method.

Regards,
Fabio.
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Bunuel
When positive integer N is divided by positive integer J, the remainder is 14. If N/J = 134.08, what is value of J?

A. 22
B. 56
C. 78
D. 112
E. 175


Kudos for a correct solution.
Solution:

We can create the equation:

N/J = 134 + 8/100

N/J = 134 + 2/25

But we are also given that the remainder is 14. In other words, we have:

N/J = 134 + 14/J

Setting 2/25 = 14/J, we have:

2J = 14 x 25

2J = 350

J = 175

Answer: E
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If you try to reframe this, you'll get that 14 is equal to 8% (134.08) of something. We need to find that "something"

14 = 8/100*x
=> 1400/8 = x
=> 350 / 2 = x

I didn't even solve further. I knew that the next number had to end in 5 and that there was only 1 possible choice for it.
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