10101
The binary number 10101 represents 21.
5
5 multiplied by 2 is 10Answer:Consider the joke: There are 10 kinds of people in the world those who understand binary and those that don't.Binary uses powers of 2 to express numbers. Thus 20=1,21=2, 22=4 and so on (numbers shown in decimal). This is expressed as strings of numbers using either 0 or 1. Thus 0(binary) =0 (deciamal). 1(Binary)=1 (decimal) or 20, 10(binary)=2(decimal) or 21, 11=3 (decimal) =10+1(binary) = 21+20 and so on.
A binary operation acting on two numbers (real or complex) must give the same answer. They cannot give two different answer. If different answers are required the binary operations must be different and, to identify the numbers involved, these binary operations must be specified. For example, 13.5 and 34.5 give 21 as a difference and 48 as a sum. There will be another pair for addition and multiplication, still another pair for subtraction and multiplication, etc.
The number 21 in binary is 10101
The number 21 in binary is 10101
21 = 10101
21
10101
310=21 + 20 . That is 112 in binary system.
10101
10101
The binary number 10101 represents 21.
21
The binary code for eleven is 1011. 1011 = 23 + 21 + 20 = 8 + 2 + 1
16 + 4 + 1 =21