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AP EAMCET202316 May 2023Evening ShiftMathematicsBinomial TheoremActual

The number of elements in the set x N :^ 20-2 x c_ x-3 N is

Options

  1. A3
  2. B4
  3. C5
  4. D6

Correct answer

C. 5

Step-by-step solution

^ 20-2 x C_ x-3 N So, 20-2 x >0 x < 10 and x-3 0 x 3 and 20-2 x x-3 x 23 3 x 7 x N Now, from above inequalities, we have 3 x 7 x is a natual number. x =3,4,5,6,7 So, number of elements in the set =5

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