Question

Help! please
To attend a particular camp, a student must be either at least 13 years old or in grade 9 or higher, but must not yet be 18 years old. Let age represent a student’s age and let grade represent the student’s grade level. Which of the following expressions evaluates to true if the student is eligible to attend the camp and evaluates to false otherwise?


((age ≥ 13) OR (grade ≥ 9)) AND (age ≤ 180

((age ≥ 13) OR (grade ≥ 9)) AND (age < 18)

((age ≥ 13) OR (grade ≥ 9)) OR (age ≤ 18)

((age ≥ 13) OR (grade ≥ 9)) OR (age < 18)

Answer 1

Answer: b

Explanation:

Answer 2

The correct boolean expression which correctly represents the conditions and evaluates to true ls the option B.

Using the following boolean evaluation rule :

• T or T = T
• T or F = T
• T and F = F

((age ≥ 13) OR (grade ≥ 9)) AND (age ≤ 18)

(T or T) and F ( less than 18)

T and F = False

((age ≥ 13) OR (grade ≥ 9)) AND (age < 18)

(T or T) and T

T and T = True

• The third option is wrong as the age must be less than 18

• Fourth option is wrong as the second operator should be AND

Therefore, the correct option is B.

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