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Re: M23-13 [#permalink]
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I have edited the question and the solution by adding more details to enhance its clarity. I hope it is now easier to understand.
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M23-13 [#permalink]
Hi Bunuel

Can you refer me to more resources about these kinds of questions? I.e those about getting the tens/hundreds/thousands digit given a subtraction/addition
Are there more "formal"/elegant/algebraic ways to solve them, or is it purely making smart guesses on what number will prove/disprove the statements?
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Re: M23-13 [#permalink]
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r_putra_rp wrote:
Hi Bunuel

Can you refer me to more resources about these kinds of questions? I.e those about getting the tens/hundreds/thousands digit given a subtraction/addition
Are there more "formal"/elegant/algebraic ways to solve them, or is it purely making smart guesses on what number will prove/disprove the statements?


Check Arithmetic's tag in DS: https://gmatclub.com/forum/search.php?s ... &tag_id=30
GMAT Club Bot
Re: M23-13 [#permalink]
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