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Bunuel ,i love youuuuuuuuuuuuuuuuuuuu!!!!!!!
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very nicely explained by Bunnel.

The tricky part here was the consideration of zero.
While dealing with these type of DS questions always consider scenario of -ve, 0 ,and +ve numbers.
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Bunuel ,i love youuuuuuuuuuuuuuuuuuuu!!!!!!!

It is not an uncommon reply to Bunuels posts :lol:

You can kindly give Bunuel Kudos (there is a button for that)

P.S. You can also "Follow" bunuel (you will get daily summaries of his posts) so you don't miss any wisdom. There is a follow button next to his name.
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Good work Bunuel. I missed the zero consideration too!
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The answer is C but I also missed the Zero part.
As Bunuel says ZIP code
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samramandy
The answer is C but I also missed the Zero part.
As Bunuel says ZIP code

Bunuel,

Bestow your legendary wisdom upon this mortal, so that he too can know what ZIP code is.

P.S. M assuming Z - zero...whats the rest
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samramandy
The answer is C but I also missed the Zero part.
As Bunuel says ZIP code

Bunuel,

Bestow your legendary wisdom upon this mortal, so that he too can know what ZIP code is.

P.S. M assuming Z - zero...whats the rest

ZIP - Zero, Integers, Positive numbers.

GMAT likes to act in -1<=x<=1 range. So:

Don't assume, with no ground for it, that variable cannot be Zero. Check 0!
Don't assume, with no ground for it, that variable is an Integer. Check fractions!
Don't assume, with no ground for it, that variable is Positive. Check negative values!
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Bunuel,

in statement 1, how can M be zero ? That is the part I am confused about
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pra1785
Bunuel,

in statement 1, how can M be zero ? That is the part I am confused about

-0 = 0 and |-0| = |0| = 0, so if M = 0, then -M = 0 = |-M|.
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