Which of the Following Addition Problems Cannot Be Solved Accurately

question 41

Multiple Choice

Which of the following addition problems cannot be solved accurately when using a floating-point system in which each value is encoded by a byte whose most significant bit is the sign bit,the next three bits represent the exponent field in excess notation,and the last four bits represent the mantissa?

• A) 2 1/2 + 1 3/8
• B) 3 1/2 + 4 1/2
• C) 7 + 3/4
• ____________

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Definitions:

Validity

The degree to which a test or instrument measures what it is intended to measure, accurately reflecting the concept it is designed to assess.

Tendency To Help

An inclination or natural propensity in humans to provide assistance or aid to others in need.

Altruism

Unselfish concern for the welfare of others; selflessness.

Reward

A stimulus given to a person or an animal to encourage a particular behavior, reinforcing the behavior's occurrence.