Simplify n ndash n ndash m n ndash n ndash n ndash m n 2m ........

Quantitative Aptitude ( CCS) Simplification

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Simplify n – [n – (m + n) – [n – (n – (m-n) )} + 2m]

m-n

m+n

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Explanation:

Given expression
= n – [n – (m + n) – {n – (n – (m-n) )} + 2m]
= n – [n – (m + n) – {n – (n – m + n)} + 2m]
= n – [n – (m + n) – {n – (2n – m)} + 2m]
= n – [n – m - n – {n – 2n + m} + 2m]
= n – [- m – {- n + m} + 2m]
= n – [- m + n – m + 2m]
= n – [n] = n – n = 0