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4:30

In a survey of 600 students in a school, (i) 160 students were found to be taking tea , 215 taking coffee , 150 were taking both tea and cofee. <br> (ii) 150 students were found to be taking tea and 225 taking coffee , 100 were taking both Tea and Coffee <br> Find how many students were taking neither tea nor coffee.

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10:52

An investigator interviewed 100 students to determine the performance of three drinks: that 10 students take all three drinks milk, milk, coffee and tea. The investigator reported coffee and tea; 20 students take milk and coffee: 25 students take milk and tea; 20 students take coffee 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 three drinks is

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