Reasoning scenario 2: An international university applicant is asked to integrate unfamiliar evidence and quantitative information. The setting is a student-services review. Among 150 applications, 31 require check A, 34 require check B, and 15 require both. How many require A or B?

Reasoning scenario 2: An international university applicant is asked to integrate unfamiliar evidence and quantitative information. The setting is a student-services review. Among 150 applications, 31 require check A, 34 require check B, and 15 require both. How many require A or B?

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