Page 48 - Computer Science Class 11 Without Functions
P. 48
b. (11011) to decimal
2
Face Value 1 1 0 1 1
Place value 2 4 2 3 2 2 2 1 2 0
1
3
4
2
= 1 × 2 + 1 × 2 + 0 × 2 + 1 × 2 + 1 × 2 0
= 16 + 8 + 0 + 2 + 1
= 27
(11011) = (27) 10
2
c. (195) to octal
10
8 195 Remainder
8 24 3
8 3 0
0 3
(195) = (303) 8
10
d. (706) to decimal
8
Face Value 7 0 6
Place value 8 2 8 1 8 0
= 7 × 8 + 0 × 8 + 6 × 8 0
1
2
= 448 + 0 + 6
= 454
(706) = (454)
8 10
e. (942) to hexadecimal
10
16 942 Remainder
16 58 14 E
16 3 10 A
0 3
(942) = (3AE) 16
10
f. (A19) to decimal
16
Face Value A 1 9
Place value 16 16 16 0
1
2
= A × 16 + 1 × 16 + 9 × 1
2
= 10 × 256 + 16 + 9
= 2585
(A19) = (2585)
16 10
g. (1010110) to octal
2
0 0 1 0 1 0 1 1 0
1 2 6
(1010110) = (126) 8
2
h. (732) to binary
8
46 Touchpad Computer Science-XI

