NDA MATHS QUESTION BANK

(sacavldel) #1

  1. The binary number
    ( ) when written in
    base 10 equals:
    (a) 1985 (b) 3357 (c) 2797 (d) 3579

  2. What is the equivalent binary
    number of the decimal number 13.625?
    (a) 1101.111 (b) 1111.101 (c)
    1101.101 (d) 1111.

  3. In the binary addition, where x, y, z
    are binary digits
    1 x 1 0 1



  • 1 0 y 1
    1 0 0 z 00


The possible values of x, y and z,
respectively are:
(a) 0, 1 and 0 (b) 1, 1 and 0 (c) 0, 0 and
1 (d) 1, 0 and 1



  1. What is the value of
    ( ) ( ) ( ) ( )
    ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )


(a) ( ) (b) ( ) (c) ( )
(d) ( )



  1. In binary number system, 100011
    minus 1010 means:


(a) 101001 (b) 11010 (c) 11001
(d) 100101



  1. If x= ( ) and y= ( ) , then
    what is the value of?
    (a) ( ) (b) ( )
    (c) ( ) (d) ( )

  2. The number 139 is represented in
    binary number as:
    (a) 10010011 (b) 10001011 (c)
    11000101 (d) 11000011
    13. The number 0.0011 in binary
    system represents
    (a) rational number 3/8 in decimal
    system (b) rational number 1/8 in
    decimal system (c) rational number
    3/16 in decimal system (d) rational
    number 5/16 in decimal system
    14. The decimal equivalent of the
    binary number 11001, is:
    (a) 252 (b) 52 (c) 25 (d) 3
    15. What is the decimal equivalent of
    ( )?
    (a) ( ) (b) ( ) (c)
    ( ) (d) ( )
    16. The binary number
    1101101+1011011 is written in
    decimal system as:
    (a) 198 (b) 199 (c) 200 (d) 201
    17. The multiplication of the number
    ( ) by ( ) yields which one
    of the following?
    (a) ( ) (b) ( )
    (c) ( ) (d) ( )
    18. The binary equivalent to the
    decimal number 0.3125 is:
    (a) 0101 (b) 0.1010 (c) 0.
    (d) 0.
    19. Which one of the following binary
    numbers is the prime number?
    (a) 111101 (b) 111010 (c) 111111
    (d) 100011
    20. The binary number 10110100001
    in decimal system is:
    (a) 441 (b) 1441 (c) 1241 (d) 241

Free download pdf