Question

- In a class consisting of 120 students, 30 are studying Mathematics, 40 are studying
Physics ,45 are studying Chemistry,15 are studying mathematics and Physics, 20 studying
Physics and Chemistry,12 are studying Mathematics and chemistry and 8 are studying all
the three subjects. How many (a) studying at least one the these subjects ? (b) do not
take any of these subjects? (c) how many study exactly two of the three subjects?

Answer 1

Answer:

120 students , 30 are studying maths, 40 are studying physices