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Question

The set of solutions for 4x394<x+34 and 7x137x+26>x is 
  1. (4,9)
  2. (2,9)
  3. (4,6)
  4. (6,9)


Solution

The correct option is A (4,9)
4x394<x+34x3<3x<9   (1)

7x137x+26>x14x27x2>6xx>4   (2)

From (1) and (2),
x(4,9)

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