10-27-2010, 11:11 PM
? = 01111001.01100100.11110110.00001010
Solution
(01111001)2 = 1*20 + 0*21 + 0*22 + 1*23 + 1*24 +1*25 +1*26 + 0*27
= 1*1 + 0 + 0 + 8 + 16 + 32 + 64 + 0
= 1 + 0 + 0 + 8 + 16 + 32 + 64 + 0
= 121
(01100100)2 = 0*20 + 0*21 + 1*22 + 0*23 + 0*24 +1*25 +1*26 + 0*27
= 0 + 0 + 4 + 0 + 0 + 32 + 64 + 0
= 100
(11110110)2 = 0*20 + 1*21 + 1*22 + 0*23 + 1*24 +1*25 +1*26 + 1*27
= 0 + 2 + 4 + 0 + 16 + 32 + 64 + 128
= 246
(00001010)2 = 0*20 + 1*21 + 0*22 + 1*23 + 0*24 +0*25 +0*26 + 0*27
= 0 + 2 + 0 + 8 + 0 + 0 + 0 + 0
= 10
01111001. 01100100. 11110110. 00001010= 121.100.264.10 = Answer
d) ? = 11001010.01111101.10001010.10011101
Solution
(11001010)2 = 0*20 + 1*21 + 0*22 + 1*23 + 0*24 +0*25 +1*26 + 1*27
= 0 + 2 + 0 + 8 + 0 + 0 + 64 + 128
= 202
(01111101)2 = 1*20 + 0*21 + 1*22 + 1*23 + 1*24 +1*25 +1*26 + 0*27
= 1 + 0 + 4 + 8 + 16 + 32 + 64 + 0
= 125
(10001010)2 = 0*20 + 1*21 + 0*22 + 1*23 + 0*24 +0*25 +0*26 + 1*27
= 0 + 2 + 0 + 8 + 0 + 0 + 0 + 128
= 138
(10011101)2 = 1*20 + 0*21 + 1*22 + 1*23 + 1*24 +0*25 +0*26 + 1*27
= 1 + 0 + 4 + 8 + 16 + 0 + 0 + 128
= 157
11001010.01111101.10001010.10011101 = 202.125.138.157 = Answer
Solution
(01111001)2 = 1*20 + 0*21 + 0*22 + 1*23 + 1*24 +1*25 +1*26 + 0*27
= 1*1 + 0 + 0 + 8 + 16 + 32 + 64 + 0
= 1 + 0 + 0 + 8 + 16 + 32 + 64 + 0
= 121
(01100100)2 = 0*20 + 0*21 + 1*22 + 0*23 + 0*24 +1*25 +1*26 + 0*27
= 0 + 0 + 4 + 0 + 0 + 32 + 64 + 0
= 100
(11110110)2 = 0*20 + 1*21 + 1*22 + 0*23 + 1*24 +1*25 +1*26 + 1*27
= 0 + 2 + 4 + 0 + 16 + 32 + 64 + 128
= 246
(00001010)2 = 0*20 + 1*21 + 0*22 + 1*23 + 0*24 +0*25 +0*26 + 0*27
= 0 + 2 + 0 + 8 + 0 + 0 + 0 + 0
= 10
01111001. 01100100. 11110110. 00001010= 121.100.264.10 = Answer
d) ? = 11001010.01111101.10001010.10011101
Solution
(11001010)2 = 0*20 + 1*21 + 0*22 + 1*23 + 0*24 +0*25 +1*26 + 1*27
= 0 + 2 + 0 + 8 + 0 + 0 + 64 + 128
= 202
(01111101)2 = 1*20 + 0*21 + 1*22 + 1*23 + 1*24 +1*25 +1*26 + 0*27
= 1 + 0 + 4 + 8 + 16 + 32 + 64 + 0
= 125
(10001010)2 = 0*20 + 1*21 + 0*22 + 1*23 + 0*24 +0*25 +0*26 + 1*27
= 0 + 2 + 0 + 8 + 0 + 0 + 0 + 128
= 138
(10011101)2 = 1*20 + 0*21 + 1*22 + 1*23 + 1*24 +0*25 +0*26 + 1*27
= 1 + 0 + 4 + 8 + 16 + 0 + 0 + 128
= 157
11001010.01111101.10001010.10011101 = 202.125.138.157 = Answer
