Logarithms & Binary Numbers · NDA previous year questions

2012 5 questions

1. Q92012 · 19 Aug 2012

   The decimal representation of the number $(1011{)}_2$ in binary system is:

   1. A.5
   2. B.7
   3. C.9
   4. D.11
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   Answer: D

2. Q102012 · 19 Aug 2012

   The decimal number $(57.375{)}_{10}$ when converted to binary number takes the form:

   1. A.$(111001.011{)}_2$
   2. B.$(100111.110{)}_2$
   3. C.$(110011.101{)}_2$
   4. D.$(111011.011{)}_2$
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   Answer: A

3. Q112012 · 19 Aug 2012

   If $({\log }_{3}x)({\log }_{x}2x)({\log }_{2x}y)={\log }_x{x}^2$, then what is y equal to?

   1. A.4.5
   2. B.9
   3. C.18
   4. D.27
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   Answer: B

4. Q82012 · 15 Apr 2012

   The number 292 in decimal system is expressed in binary system by

   1. A.100001010
   2. B.100010001
   3. C.100100100
   4. D.101010000
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   Answer: C

5. Q302012 · 15 Apr 2012

   What is the decimal number representation of the binary number $(11101.001{)}_2$?

   1. A.30.125
   2. B.29.025
   3. C.29.125
   4. D.28.025
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   Answer: C