Q. An investigator interviewed 100 students to determine the performance of three drinks milk, coffee and tea. The investigator reported that 10 students take all three drinks milk, coffee and tea; 20 students take milk and coffee, 30 students take coffee and tea, 25 students take mile and tea, 12 students take milk only, 5 students take coffee only and 8 students take tea only. Then, the number of students who did not take any of the three drinks, is
A) 10
B) 20
C) 25
D) 30
Explanation
(b)
Total drinks=3($ie$, milk, coffee, tea).
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Total number of students who take any of the drink is 80.
$\therefore$The number of students who did not take any of three drinks$= 100 - 80 = 20$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.