The Director of Medical Services was on his annual visit to the ENT Hospital. While going through the out patients’ records he came across the following data for a particular day : ” Ear consultations 45; Nose 50; Throat 70; Ear and Nose 30; Nose and Throat 20; Ear and Throat 30; Ear, Nose and Throat 10; Total patients 100.” Then he came to the conclusion that the records were bogus. Was he right?

• yes, he was right coz, no. of ear consultant + nose + throat = 165. but the record says only 100 people.
• 13 years agoHelpfull: Yes(3) No(2)
• the doctor was right because no of ear patient is 50 while in the record is 45 which is not consistent
  proof:
  10(ENT)+(30-10 EN)+(30-10 ET) =10+20+20=50.
  **use a Venn diagram for better understanding.
• 13 years agoHelpfull: Yes(0) No(1)