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If the units digit of the three-digit positive integer k is nonzero

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Re: If the units digit of the three-digit positive integer k is nonzero [#permalink]

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New post 06 Aug 2016, 07:33
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Kudos [?]: 273 [0], given: 0

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Kudos [?]: 273 [0], given: 0

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Re: If the units digit of the three-digit positive integer k is nonzero [#permalink]

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New post 08 Aug 2017, 11:48
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: If the units digit of the three-digit positive integer k is nonzero [#permalink]

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New post 16 Aug 2017, 21:16
I miss the nonzero..
be extra aware of the questions

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Re: If the units digit of the three-digit positive integer k is nonzero [#permalink]

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New post 17 Aug 2017, 10:42
1) let number be 121,122,123,124,125,.....129
if 9 is added the tens digit changes to 3 therefore tens digit is 3. A/D
2) let number be 119 then adding 4 makes tens digit 2 but on other hand taking number 121 and adding 4 makes tens digit again 2 so insufficient.

A is the answer
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Re: If the units digit of the three-digit positive integer k is nonzero   [#permalink] 17 Aug 2017, 10:42

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