Hello friends
This is a question of arithmetic related to number problems, I have tried a lot to solve it but somehow I am unable to find out the correct answer.
If c is a +ve integer between 1 and 9, and n = 9,446 + c, then what is the value of c?
(1) n is divisible by 5.
(2) n is divisible by 9.
In the last paragraph, when n is divisible by 5, then "c" can be 4 or 9. In the next sentence it states, "if n is divisible by 9, you can add the digits and find what
the nearby multiples of 9 are. Which digits are you adding?
I had seen this question at www.testcircle.com/gmat in free GMAT sample videos, and there are more than 1000s of GMAT CAt test based questions in free sample videos.
Waiting for a good reply.
Thanks
I need help to solve it.........
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- swati chaturvedi
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answer seems to be '4'
1. divisible by 5 -----
when 9446 is divided by 5,this leaves remainder of 1 and both 4 and 9 will satisfy the condition of n divisible by 5.
9446/5= 1889 1/5
2. divisible by 9-----
9446/9= 1049 5/9, with remainder of 5 and only 4 will satisfy this condition of n being divisible by 9.
Hope it is correct.
1. divisible by 5 -----
when 9446 is divided by 5,this leaves remainder of 1 and both 4 and 9 will satisfy the condition of n divisible by 5.
9446/5= 1889 1/5
2. divisible by 9-----
9446/9= 1049 5/9, with remainder of 5 and only 4 will satisfy this condition of n being divisible by 9.
Hope it is correct.
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Hi Alfred,Alfred wrote:Hello friends
This is a question of arithmetic related to number problems, I have tried a lot to solve it but somehow I am unable to find out the correct answer.
If c is a +ve integer between 1 and 9, and n = 9,446 + c, then what is the value of c?
(1) n is divisible by 5.
(2) n is divisible by 9.
In the last paragraph, when n is divisible by 5, then "c" can be 4 or 9. In the next sentence it states, "if n is divisible by 9, you can add the digits and find what
the nearby multiples of 9 are. Which digits are you adding?
I had seen this question at www.testcircle.com/gmat in free GMAT sample videos, and there are more than 1000s of GMAT CAt test based questions in free sample videos.
Waiting for a good reply.
Thanks
Remember the divisibility test of 9, if a number is given then you add up all the digits and see if the result is divisible by 9.
eg 72 = 7+2=9 so divisible by 9
for this question Ans should be D both statements will give answer 4.
The question is a little confusing, does the question mean 1 and 9 ARE included? If it does then the answer is B, if 1 and 9 are EXCLUDED i.e 1<c<9 then the answer is D
mun1shk wrote:Hi Alfred,Alfred wrote:Hello friends
This is a question of arithmetic related to number problems, I have tried a lot to solve it but somehow I am unable to find out the correct answer.
If c is a +ve integer between 1 and 9, and n = 9,446 + c, then what is the value of c?
(1) n is divisible by 5.
(2) n is divisible by 9.
In the last paragraph, when n is divisible by 5, then "c" can be 4 or 9. In the next sentence it states, "if n is divisible by 9, you can add the digits and find what
the nearby multiples of 9 are. Which digits are you adding?
I had seen this question at www.testcircle.com/gmat in free GMAT sample videos, and there are more than 1000s of GMAT CAt test based questions in free sample videos.
Waiting for a good reply.
Thanks
Remember the divisibility test of 9, if a number is given then you add up all the digits and see if the result is divisible by 9.
eg 72 = 7+2=9 so divisible by 9
for this question Ans should be D both statements will give answer 4.
- shashank.ism
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here n = 9446 + cAlfred wrote:Hello friends
This is a question of arithmetic related to number problems, I have tried a lot to solve it but somehow I am unable to find out the correct answer.
If c is a +ve integer between 1 and 9, and n = 9,446 + c, then what is the value of c?
(1) n is divisible by 5.
(2) n is divisible by 9.
In the last paragraph, when n is divisible by 5, then "c" can be 4 or 9. In the next sentence it states, "if n is divisible by 9, you can add the digits and find what
the nearby multiples of 9 are. Which digits are you adding?
I had seen this question at www.testcircle.com/gmat in free GMAT sample videos, and there are more than 1000s of GMAT CAt test based questions in free sample videos.
Waiting for a good reply.Thanks
st.1: when 9446 is divided by 5 it will give remainder =1 (as last digit is 6)
so for 9446 + c to be divisible by 5, c+1 must be divisible by 5
also1< c<9 --> c= 4 -----------------(i)--------------sufficient
st.2: also when 9446 is divided by 5 it will give remainder =5 (as last sum of digit = 9+4+4+6 = 23)
so for 9446 + c to be divisible by 9, c+5 must be divisible by 9
also1=< c<=9 --> c= 4 -----------------(ii)--------------sufficient
Ans D
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Shashank is right here, actually the confusion here is in statement 1, because it is written between 1 and 9 that means 1 and 9 are not included.
so both the statements are sufficient alone, giving us answer D
so both the statements are sufficient alone, giving us answer D
Last edited by Mom4MBA on Fri Feb 19, 2010 10:08 am, edited 1 time in total.
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- shashank.ism
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Yeah that is what I meant to say that If its clearly written between 1 and 9 that means 1 and 9 are not included.Mom4MBA wrote:Shashank's is right here, actually the confusion here is in statement 1, because it is written between 1 and 9 that means 1 and 9 are not included.
so both the statements are sufficient alone, giving us answer D
Also I have seen that whenever there is an inclusion of boundary values they always specify it in question or show it inform of mathematical expression so rest assured about it...
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hi all,
I guess the answer is 'B'.... since that is precisely concludes the value of 'c'. n we dont need other hint for doing them.. it also takes care of optimization
I guess the answer is 'B'.... since that is precisely concludes the value of 'c'. n we dont need other hint for doing them.. it also takes care of optimization
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Rohan
- shashank.ism
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rohankelkar81 yeah B precisely concludes the value of C but A also gives the same value...rohankelkar81 wrote:hi all,
I guess the answer is 'B'.... since that is precisely concludes the value of 'c'. n we dont need other hint for doing them.. it also takes care of optimization
so you have to consider the option D which says" A and B are individually sufficient to ans he problem"
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