Question

Transforms nr din baza 2 in baza 10
11 (2);111 (2);1111 (2);10101 (2);10111 (2)

Answer 1

11=3(2+1)

111=7(4+2+1)

1111=15(8+4+2+1)

10101=21(16+4+1)

10111=23(16+4+2+1)