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Muhammad

بِسمِ اللَّهِ الرَّحمٰنِ الرَّحيمِ

From: Sahiwal Division

Registered: 2012-03-22

Posts: 22,197

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Simplfy b - [b -(a+b) - {b - (b - a+b)} + 2a]?

Certifications Quizzes CAT (Common Admission Test)

Question:
Simplfy
b - [b -(a+b) - {b - (b - a+b)} + 2a]

Option A):
0
Option B):
a
Option C):
4a
Option D):
2a

Correct Answer is Option A):
0

Explanation:
b-[b-(a+b)-{b-(b-a+b)}+2a]
=b-[b-a-b-{b-(2b-a)}+2a]
=b-[-a-{b-2b+a}+2a]
=b-[-a-{-b+a}+2a]
=b-[-a+b-a+2a]
=b-[-2a+b+2a]
=b-b
=0

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