hard · GMAT Quant
A hospital system audits 350 emergency department records across three diagnostic procedures: CT Scan, MRI, and Ultrasound. 40 records indicate none of these procedures were performed. 210 records include a CT Scan, 190 include an MRI, and 150 include an Ultrasound. If 35 records include all three procedures
How many records include exactly two procedures?
- 170
- 240
- 205
- 130
- 135
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