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There are 16 teachers who can teach Thermodynamics (TD), 11 who can teach Electrical Sciences (ES), and 5 who can teach both TD and Engineering Mechanics (EM). There are a total of 40 teachers. 6 cannot teach any of the three subjects, i.e. EM, ES or TD. 6 can teach only ES. 4 can teach all three subjects, i.e. EM, ES and TD. 4 can teach ES and TD. How many can teach both ES and EM but not TD?
In a group of 33 teachers in a high school, 7 teachers teach chemistry, 19 teachers teach physics and 18 teachers teach mathematics. Also, 3 teachers teach both chemistry and physics, 8 teachers teach both physics and mathematics and none of teachers teach both chemistry and mathematics. Then, find the number of teachers who teach only chemistry?
In a survey of 900 students, 400 students were interviewed in TCS, 310 students were interviewed in IBM and 470 students were interviewed in Infosys. Also, 110 students were interviewed in both TCS and IBM, 80 students were interviewed in both IBM and Infosys and 140 students were interviewed in both TCS and Infosys. If 50 students were interviewed in all three companies. Then, how many students were interviewed in only TCS?
A, B, C, and D are high school teachers who teach four subjects. A and B teach sociology. B and C teach mathematics and sociology. A teach the same subjects as those who teach D. D teaches two subjects that C does not teach. Who teaches three subjects?
In a group of 450 students, 22% of the total students take the Hindi subject, 34% of the total students take the Physics subject, and 26% of the total students take the Social Science subject. 8% of the total students have taken both Hindi and Physics subject only. Out of the total students in the Hindi subject, 1/3 have taken both Hindi and Social Science subject only. Out of the total students in the Physics subject, 1/3 have taken both Physics and Social Science subject only. Only 20 students take all the three subjects. Find the number of students who have not taken any subject.  
In a survey of 100 students, it was found that 25 students have enrolled for Navy AA test series, 26 students have enrolled for NDA test series, 26 students have enrolled for Airforce group X test series, 9 students have enrolled for both Navy AA and Airforce group X test series, 11 students have enrolled for both Navy AA and NDA test series, 8 students have enrolled for both NDA and Airforce group X test series whereas 3 students have enrolled in all three test series. Find the number of students who has not enrolled in any of the test series.
In a survey of 100 students, it was found that 25 students have enrolled for Navy AA test series, 26 students have enrolled for NDA test series, 26 students have enrolled for Airforce group X test series, 9 students have enrolled for both Navy AA and Airforce group X test series, 11 students have enrolled for both Navy AA and NDA test series, 8 students have enrolled for both NDA and Airforce group X test series whereas 3 students have enrolled in all three test series. Find the number of students who have enrolled exactly in any two test series.
In a survey of 100 students, it was found that 25 students have enrolled for Navy AA test series, 26 students have enrolled for NDA test series, 26 students have enrolled for Airforce group X test series, 9 students have enrolled for both Navy AA and Airforce group X test series, 11 students have enrolled for both Navy AA and NDA test series, 8 students have enrolled for both NDA and Airforce group X test series whereas 3 students have enrolled in all three test series. Find the number of students who have enrolled in exactly one test series.
There are 75 students in a class, they all play at least one of the instruments namely violin, guitar, and harmonium. Further it is known that, 15 students play all the three instruments. 20 students play both guitar and violin, 30 students play both guitar and harmonium and 25 students play both violin and harmonium. A total of 50 students can play harmonium and a total of 45 students play violin. What is the number of students who can play only guitar?
Read the given information and answer the question asked by choosing the most appropriate option. In a class, 47 students like Oswald, 44 students like Dexter and 47 students like Ben Ten. Also, 29 students like both Oswald and Dexter, 23 students like both Dexter and Ben Ten, 21 students like both Ben Ten and Oswald and 15 students like all the three. How many students like only Ben Ten?