Binary 111011 represents the decimal number

Binary 111011 represents

1. Decimal 59
2. Decimal 67
3. Decimal 78
4. Decimal 95

Correct answer: 1. Decimal 59

= (1 * 2⁵) + (1 * 2⁴) + (1 * 2³) + (0 * 2²) + (1 * 2¹) + (1 * 2⁰)

= 32 + 16 + 8 + 0 + 2 + 1

= 59

So Binary number 111011 equals decimal 59