Which statement correctly interprets the range 200-1000 rpm?

Which statement correctly interprets the range 200-1000 rpm?

• A. The speed must be between 200 and 1000 rpm, inclusive
• B. The speed must be exactly 200 rpm
• C. The speed must be divisible by 2
• D. The speed must be between 100 and 900 rpm

Answer: (A)

Interpreting a numeric range means any value within the interval is acceptable, including the endpoints. So 200-1000 rpm means the speed can be any value from 200 up to 1000 rpm, and both 200 rpm and 1000 rpm are allowed. Values outside, like 199 rpm or 1001 rpm, would not meet the specification. The other statements miss the interval idea: one would fix the speed to a single value, another adds a condition (being divisible by 2) that isn’t implied by the range, and the last describes a different range altogether.

Interpreting a numeric range means any value within the interval is acceptable, including the endpoints. So 200-1000 rpm means the speed can be any value from 200 up to 1000 rpm, and both 200 rpm and 1000 rpm are allowed. Values outside, like 199 rpm or 1001 rpm, would not meet the specification. The other statements miss the interval idea: one would fix the speed to a single value, another adds a condition (being divisible by 2) that isn’t implied by the range, and the last describes a different range altogether.