Multiple choice general knowledge science & technology 135 in decimal system is/are ____. 87 in hexadecimal system 207 in octal system 10000111 in binary notation 1000111 in binary system Reveal answer Fill a bubble to check yourself A,B,C Correct answer Explanation Decimal 135 equals 87 in hex (8×16+7), 207 in octal (2×64+0×8+7), and 10000111 in binary (128+4+2+1). Option D (1000111=7 bits) is incorrect - the binary representation requires 8 bits (10000111). Verify: hex 87 (8×16+7=135), octal 207 (2×64+0×8+7=135).