For NASA's upcoming mission, the age criteria for the astronauts is: "At least 21 years of age but less than 40 years of age". Which of the following is the right compound inequality for the age criteria?

21 < A G E < 40

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21 \leq A G E \leq 40

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21 < A G E \leq 40

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21 \leq A G E < 40

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Solution

The correct option is D $21 \leq A G E < 40$
Clearly, "atleast" means that those who are 21 or above are eligible. This eliminated options (a) and (c). "less than 40" indicates that those who are 40 or above are not eligible, which eliminates option (b).

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For NASA's upcoming mission, the age criteria for the astronauts is: "At least 21 years of age but less than 40 years of age". Which of the following is the right compound inequality for the age criteria?

The correct option is D 21 ≤ AGE < 40Clearly, "atleast" means that those who are 21 or above are eligible. This eliminated options (a) and (c). "less than 40" indicates that those who are 40 or above are not eligible, which eliminates option (b).

The correct option is D $21 \leq A G E < 40$
Clearly, "atleast" means that those who are 21 or above are eligible. This eliminated options (a) and (c). "less than 40" indicates that those who are 40 or above are not eligible, which eliminates option (b).