Question

if abc is three digit no., prove that abc+bca+cab multiple of 11​

Answer 1

if ABC is a three digit number it can be written as 100a+b+c bca=100b+10c+a cab=100c+10a+b

adding all these we get ABC+bca+cab= 111(a+b+c)

so it's always a multiple of 111

Answer 2

Answer:

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Step-by-step explanation:

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