write 75 (base 10) using base 2 numerals
75 = 64 + 11 = 64 + 8 + 3 = 64 + 8 + 2 + 1 In base 2, this would be equal to 1 2^6 + 12^3 + 12^1 + 12^0So if you wrote it backwards, it would be:01234561101001The final answer would be 1001011, because you are just reversing 1101001.