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UPSC NDA I 2012 Mathematics Paper
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© examsnet.com
Question : 30
Total: 120
What is the decimal number representation of the binary number
(
11101.001
)
2
?
30.125
29.025
29.125
28.025
Validate
Solution:
11101.001
1
×
2
4
+
1
×
2
3
+
1
×
2
2
+
0
×
2
1
+
1
×
2
0
⋅
0
×
2
−
+
0
×
2
−
2
+
1
×
2
−
3
16
+
8
+
4
+
0
+
1
⋅
0
+
0
+
1
8
29.125
© examsnet.com
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