The number of 1's in the binary representation of 3 x 4096 + 15 x 256 + 5 x 16 + 3 are:
- A. 8
- B. 9
- C. 10
- D. 12
Answer: C. 10
Explanation: 4096 = 16^3, 256 = 16^2, 16 = 16^1. The expression is 3*16^3 + 15*16^2 + 5*16^1 + 3*16^0. In Hex: 3F53. Binary: 0011 1111 0101 0011. Number of 1s: 2 + 4 + 2 + 2 = 10.