# Questions & Answers of Number representation and computer arithmetic (fixed and floating point)

Question No. 7

The n-bit fixed-point representation of an unsigned real number X uses f bits for the fraction part. Let i = n - f. The range of decimal values for X in this representation is

Question No. 101

## SET-2

The representation of the value of a 16-bit unsigned integer X in hexadecimal number system is BCA9. The representation of the value of X in octal number system is

Question No. 112

Given the following binary number in 32-bit (single precision) IEEE-754 format:

00111110011011010000000000000000

The decimal value closest to this floating-point number is

Question No. 17

The 16-bit 2’s complement representation of an integer is 1111 1111 1111 0101; its decimal representation is .

Question No. 18

The base (or radix) of the number system such that the following equation holds is____________.

$\frac{312}{20}=13.1$

Question No. 118

Consider the equation (123)5 = (x8)y with x and y as unknown. The number of possible solutions is _____ .

Question No. 4

The smallest integer that can be represented by an 8-bit number in 2’s complement form is

Question No. 7

The decimal value 0.5 in IEEE single precision floating point representation has

Question No. 8

P is a 16-bit signed integer. The 2’s complement representation of P is (F87B)16. The 2’s complement representation of 8*P is

Question No. 5

(1217)8 is equivalent to

Let r denote number system radix. The only value(s) of r that satisfy the equation $\sqrt{{121}_{r}}={11}_{r}$ is / are