# 1. Sketch the neat diagram of regenerative gas turbine plant and deduce an expression for its…

1. The class registrations of 120 students are analyzed. It is found that: 30 of
the students do not take any of Applied Mechanics, Chemistry, or Computers. 15 of them take only Applied Mechanics. 25 of them take Chemistry and Computers but not Applied Mechanics. 20 of them take Applied Mechanics and Computers but not Chemistry10 of them take all three of Applied Mechanics, Chemistry, and Computers. A total of 45 of them take Chemistry. 5 of them take only Chemistry
a) How many of the students take Applied Mechanics and Chemistry but not Computers?
b) How many of the students take only Computers?

View complete question »1. The class registrations of 120 students are analyzed. It is found that: 30 of
the students do not take any of Applied Mechanics, Chemistry, or Computers. 15 of them take only Applied Mechanics. 25 of them take Chemistry and Computers but not Applied Mechanics. 20 of them take Applied Mechanics and Computers but not Chemistry10 of them take all three of Applied Mechanics, Chemistry, and Computers. A total of 45 of them take Chemistry. 5 of them take only Chemistry
a) How many of the students take Applied Mechanics and Chemistry but not Computers?
b) How many of the students take only Computers?
c) What is the total number of students taking Computers? d) If a student is chosen at random from those who take neither Chemistry nor Computers, what is the probability that he or she does not take
Applied Mechanics either?
e) If one of the students who take at least two of the three courses is chosen at random, what is the probability that he or she takes all three courses?

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