Question

Convert the following binary numbers into their equivalent decimal numbers:
(a) 10101
(b) 10010
(C) 11001
(d) 1000001

Explain this​

Answer 1

Answer:

21, 18, 25, 65

Explanation:

A. 10101 = 1×2⁴+0×2³+1×2²+0×2¹+1×2⁰

= 16+0+4+0+1

= 21

B. 10010 = 1×2⁴+0×2³+0×2²+1×2¹+0×2⁰

= 16+0+0+2+0 = 18

C. 11001 = 1×2⁴+1×2³+0×2²+0×2¹+1×2⁰

= 16+8+0+0+1 = 25

D. 1000001 = 1×2⁶+0×2⁵+0×2⁴+0×2³+0×2²+0×2¹+1×2⁰

= 64+0+0+0+0+0+1 = 65