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If a,b are positive integers and a/b = 87.75 which of the following
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Updated on: 28 Jun 2017, 09:28
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If a,b are positive integers and a/b = 87.75 which of the following could be the value of b? A. 25 B. 26 C. 27 D. 28 E. 30
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Originally posted by sdas on 05 Dec 2011, 08:07.
Last edited by Bunuel on 28 Jun 2017, 09:28, edited 1 time in total.
Renamed the topic, edited the question and added the OA.



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Re: If a,b are positive integers and a/b = 87.75 which of the following
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05 Dec 2011, 08:37
The answer is D. 28 I solve this way, don´t know if its the best one: 87.75 has a remainder of 0.75 or 3/4. b MUST be a multiple of the denominator of the remainder, in this case it must be a multiple of 4. The only number that is a multiple of 4 in the possible answers is the number 28. So D. 28 is the answer sdas wrote: Hi, please help me solve this.
If a,b are positive integers and a/b=87.75 which of the following could be the value of b?
1. 25 2. 26 3. 27 4. 28 5. 30
sorry posted in wrong forum



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Re: If a,b are positive integers and a/b=87.75 which of the following
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05 Dec 2011, 09:29
Here is the quick and dirty way to solve this.
The prompt tells us that a/b = 87.75 so we know that B must be a number that could result in .75. This immediately rules out B (26), C (27), and E (30). Since they are nonterminating decimals. That leaves us with A and D. Quick way to solve is just choose one and multiple by 87.75 if the answer is an integer than its correct.
Taking A we find that it is not an integer so it must be D. Alternatively taking D we find that 28 x 87.75 = 2457 since that is an integer it must be D.
Hope that helps.



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Re: If a,b are positive integers and a/b=87.75 which of the following
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05 Dec 2011, 09:53
Given a/b = 87.75. this is 87 and 3/4 = 351/4 Since a and b are integers we know that whatever is the value of b, it must be divisible by 4 completely(to make a an integer) from the options only D=28 is a multiple of 4 which is your answer. IMO Option D
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Re: If a,b are positive integers and a/b=87.75 which of the following
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05 Dec 2011, 10:15
for the Value of b, a has to a positive integer. a= b*87.75 =b*8775/100 Plugging in b=28 gives an integer value for a. D



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Re: If a,b are positive integers and a/b=87.75 which of the following
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05 Dec 2011, 23:31
sdas wrote: Hi, please help me solve this.
If a,b are positive integers and a/b=87.75 which of the following could be the value of b?
1. 25 2. 26 3. 27 4. 28 5. 30 Here is a post I wrote some time back on such questions: http://www.veritasprep.com/blog/2011/05 ... emainders/Hope it will clear your doubts and you will be able to solve this question on your own.
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Re: If a,b are positive integers and a/b = 87.75 which of the following
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06 Dec 2011, 02:55
Answer is 28/ Bcoz only 24 is the multiple of 4 and only 4 can give u 0.75



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Re: If a,b are positive integers and a/b = 87.75 which of the following
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06 Dec 2011, 03:17
This should really be in the PS forum (moved). Whats the source of this? Thanks.
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Re: If a,b are positive integers and a/b = 87.75 which of the following
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06 Dec 2011, 09:47
BB its moved already. MGMAT
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Re: If a,b are positive integers and a/b = 87.75 which of the following
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07 Dec 2011, 00:04
If a,b are positive integers and a/b=87.75
here 87.75 = 87 + (3/4) so a= b*87+ b*3/4 since a and be are integer. b*87 is also integer. to evaluate this exp to integer b*3/4 must be integer. so b must be divisible by 4.
here 28 is only divisible by 4
ans is 28



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Re: If a,b are positive integers and a/b = 87.75 which of the following
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