1,821 views
2 votes
2 votes
The hexadecimal equivalent of the decimal number 0.25 is
(A)0 .25

(B) 0.35
(C)0 .40
(D)  0.15

2 Answers

Best answer
4 votes
4 votes
Answer: C binary equivalent of 0.25=0.01, 0.0100-->into hex 0.40
selected by
1 votes
1 votes

One good way is to express your number as a fraction, and then "count the number of $\frac{1}{16}'s$.

Here, it would give  $0.25=\frac{1}{4}=4\times\frac{1}{16}$  

And this is true for any number that admits a finite hexadecimal expression : you make it a fraction, with a power of 16 at the denominator, then separate your fraction in chunks with nominator a integer between 0 and 15, and denominator a power of 16. Then the nominators give the hexadecimal decomposition.

Hence,Option(C)0.40 is the correct chocie

Related questions

2 votes
2 votes
1 answer
1
DIEGO_ asked May 13, 2016
8,291 views
The binary number 10011101 is equal to the hexadecimal number (a) 103 (b) 76 (c) 67 (d) - 67
1 votes
1 votes
1 answer
2
sh!va asked Jul 13, 2016
883 views
If a number requires 6 hexadecimal digits for its representation, what is the minimum number of octal digits required to represent it ?(A) 6(B)7(C) 8(D) 9
1 votes
1 votes
3 answers
3
pC asked Apr 6, 2016
2,675 views
The square of the binary number 1001 in hexadecimal is a. 81 b. 51 c. 121 d. A1
2 votes
2 votes
2 answers
4
Aryan asked Apr 7, 2016
6,430 views
What is decimal equivalent of BCD 11011.1100 ?(A) 22.0 (B) 22.2 (C) 20.2 (D) 21.2