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  9. Q123

RRB Junior Engineer / DMS / CMA 2015 · Question 123 of 480

The value of binary 1111 is :

  1. A$$2^3$$
  2. B$$2^3 - 1$$
  3. C$$2^4$$
  4. D$$2^4 - 1$$Correct

Answer: D. $$2^4 - 1$$

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2015 paper — cracku.in solved paper with answer key · reliable-secondary

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