The decimal 11 is what binary? code example

Example 1: 10 binary to denary

binary 10 = 2 denary

Example 2: binary to decimal

= (11001010)2
= 1x27+1x26+0x25+0x24+1x23+0x22+1x21+0x20
= 128+64+0+0+8+0+2+0
= (202)10