Civil Services 2020_Qn C18, Let XYZ be a three-digit number, where (X + Y + Z) is not a multiple of

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Let XYZ be a three-digit number, where (X + Y + Z) is not a multiple of 3. Then (XYZ + YZX + ZXY) is not divisible by
(a) 3
(b) 9
(c) 37
(d) (X + Y + Z)
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Why is there a statement of (x+y+z) is not a multiple of 3 ?

gman
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This video was so helpful for me. Thanks for posting this video.
can you also post videos on detailed explanations of maths & reasoning questions of previous years' CSAT question papers starting with 2019 upto 2012?

devidevatha
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Which tab are you using? I want to buy

vishwa.y.h
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@1:14 123 i.e., 1+2+3=6 is a multiple of 3

subbaram
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But given x+y+z is not a multiple of 3

subbaram