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Intern
Joined: 22 Jan 2018
Posts: 46
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Re: N and M are each 3-digit integers. Each of the numbers 1, 2,
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 19 Dec 2018, 09:57
Really tough. I started with 8** and 7** and found out the difference as 49. Since 49 was already present as an answer choice, I marked it.
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Director
Joined: 29 Jun 2017
Posts: 589
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Re: N and M are each 3-digit integers. Each of the numbers 1, 2,
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26 Feb 2019, 06:57
to get minimum difference we need the following
the 2 hundred numbers must be as close as possible, for example 1 and 2, 2 and 3, 6 and 7 or 7 and 8
second. the 2 ten number must be as far as possible, there is only 1 couple which is 1 and 8. from this point now ther are only 2 case for the 2 hundred numbers which are 2 and 3 , and 6 and 7
suppose it is 2 and 3. we plug the number, 287 and 316, of course, for digit numbers, put the bigger into the smaller number
supoose, it is 6 and 7, we plug the number , 683 and 782,
we get the result .
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Re: N and M are each 3-digit integers. Each of the numbers 1, 2,
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26 Feb 2019, 06:57
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