Home » Aptitude » Elementary Algebra » Question
  1. If x =
    4ab
    , then the value of
    x + 2a
    +
    x + 2b
    is
    a + bx - 2a
    x - 2b
    1. a
    2. b
    3. 0
    4. 2
Correct Option: D

Given in the question ,

x + 2a
+
x + 2b
x - 2a
x - 2b

Applying compodendo and Dividendo , we get
x + 2a + x - 2a
+
x + 2b + x - 2b
x + 2a - x + 2a
x + 2b - x + 2b

2x
+
2x
4a
4b

x
+
x
2a
2b

4ab
+
4ab
( a + b ) 2b
( a + b ) 2a

2b
+
2a
= 2
a + b
a + b



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