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# When positive integer x is divided by positive integer y,

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Senior Manager
Joined: 02 Dec 2007
Posts: 450

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When positive integer x is divided by positive integer y, [#permalink]

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01 Sep 2008, 09:02
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

When positive integer x is divided by positive integer y, the remainder is 9. If x/y = 96.12, what is the value of y?

A. 96
B. 75
C. 48
D. 25
E. 12

Guys I was able to find the answer by plugging in values.Can anyone suggest alternative approach ?
Cheers!

Kudos [?]: 288 [0], given: 6

Current Student
Joined: 11 May 2008
Posts: 555

Kudos [?]: 222 [0], given: 0

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01 Sep 2008, 10:36
i think that we should first get the concept right.
here , it ssays that x/y=96.12. what does this mean? it means that when x/y, 96 is the whole and .12 is the decimal.
its like saying 5/2=2.5. means that 5 , when divided by 2, leaves a remainder ,which when divided by 2 = 0.5 or 1/2.
or in other words, remainder/ divisor = decimal part of the ans

so remainder/ y = .12.
so y=9/.12 or 900/12 = 75.

Kudos [?]: 222 [0], given: 0

Manager
Joined: 12 Feb 2008
Posts: 177

Kudos [?]: 46 [0], given: 0

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01 Sep 2008, 11:58
arjtryarjtry wrote:
i think that we should first get the concept right.
here , it ssays that x/y=96.12. what does this mean? it means that when x/y, 96 is the whole and .12 is the decimal.
its like saying 5/2=2.5. means that 5 , when divided by 2, leaves a remainder ,which when divided by 2 = 0.5 or 1/2.
or in other words, remainder/ divisor = decimal part of the ans

so remainder/ y = .12.
so y=9/.12 or 900/12 = 75.

kudos arjtryarjtry, it is because of people like you this site is so great.

Kudos [?]: 46 [0], given: 0

Re: alternative approach   [#permalink] 01 Sep 2008, 11:58
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