Reasoning scenario 10: A healthcare selection panel is testing formal inference, evidence appraisal and decision quality. The setting is a screening programme. Among 128 applications, 30 require check A, 40 require check B, and 15 require both. How many require A or B?

Reasoning scenario 10: A healthcare selection panel is testing formal inference, evidence appraisal and decision quality. The setting is a screening programme. Among 128 applications, 30 require check A, 40 require check B, and 15 require both. How many require A or B?

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