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notahug
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abhijit_sen
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notahug
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[quote="abhijit_sen"]Statement 1:
Tells you that range of remainders is 6. But does not tell if all of them are distinct or not. E.g if remainders are 0,0,0,0,0,0,6 then range is 6. If it is 0,0,0,0,0,1,6 even then range is six.

Statement 2:
Tells us that 7 consecutive numbers are selected. So one of them will be divisible by 7 and rest of them will leave remainders 1,2,3,4,5,6. So sum of remainder can be obtained using this statement alone.

Answer B.[/quote]

Thanks a lot for the nice explanation dude. But I had a query in mind. If I choose consecutive number 2,3,4,5,6,7,8. then when dividing 2 by 7, 3 by 7 so on.. how do we determine the remainder as the division keeps on going on. I mean when do we stop.
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abhijit_sen
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"greatchap" we are looking for remainder and not for the decimal value. Your divison are keet on going because you are not stopping for remainder.

E.g. 8/3 can be expressed as 3*2/3 + 2/3, so 3*2 is divisible by 3 so no remainder and as 2 is not divisible 3 so that is the remainder.

Similarly 2/7 can be expressed as 7*0/7 + 2/7. so 7*0 is divisible by 7 so no remainder and as 2 is not divisible 7 so that is the remainder.

Repeat it for 3, 4, 5, 6, 7, and 8.
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Hi ! Abhijit

Your explanation to this question is very good but i think the question itself says that seven different numbers are selected from a range of 1 to 100.
So for statement 1 you cannot choose the same numbers to get a range of 6 for remainders,
But your explanation still holds as we can choose
7,14,21,28,35,42,13 or some other set of different numbers to get a range of six 0,0,0,0,0,0,6



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