What is the decimal value of binary 1111?

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Multiple Choice

What is the decimal value of binary 1111?

Explanation:
Binary numbers are read by adding up the powers of two where there is a 1. In 1111, there is a 1 in each of the four least significant positions, which correspond to 2^3, 2^2, 2^1, and 2^0. That sums to 8 + 4 + 2 + 1 = 15, so the decimal value is 15. If you change any of those ones to zero, the total would drop accordingly.

Binary numbers are read by adding up the powers of two where there is a 1. In 1111, there is a 1 in each of the four least significant positions, which correspond to 2^3, 2^2, 2^1, and 2^0. That sums to 8 + 4 + 2 + 1 = 15, so the decimal value is 15. If you change any of those ones to zero, the total would drop accordingly.

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