Page 47 - Computer Science Class 11 Without Functions
P. 47
Example 12: Convert (E7) to its equivalent octal number.
16
Step 1: Hexadecimal to Binary
E 7
↓ ↓
1110 0111
Binary equivalent of (E7) is (11100111) 2
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Step 2: Binary to octal
added one 0
0 1 1 1 0 0 1 1 1
3 4 7
Octal equivalent of (11100111) is (347) 8
2
Alternatively, you may first convert the hexadecimal number to its decimal equivalent and then find the octal
representation of the decimal number.
Find octal representation of (14) , (23) and (81) .
16
16
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Perform the following conversions:
a. (436) to binary
10
b. (11011) to decimal
2
c. (195) to octal
10
d. (706) to decimal
8
e. (942) to hexadecimal
10
f. (A19) to decimal
16
g. (1010110) to octal
2
h. (732) to binary
8
i. (101011100) to hexadecimal
2
j. (F31) to binary
16
k. (474) to hexadecimal
8
l. (C8E) to octal
16
Ans. a. (436) to binary
10
2 436 Remainder
2 218 0
2 109 0
2 54 1
2 27 0
2 13 1
2 6 1
2 3 0
2 1 1
2 0 1
(436) = (110110100) 2
10
Number Systems and Encoding Schemes 45

