A number of students prepared for an examination in Maths, Physics and Chemistry. Out of this number 15
took Physics. 20 took
Chemistry and 23 took Maths,
9 students took both Chemistry and Maths, 6 took both
Physics and Math and all those who took Physics also took Chemistry. One student fell ill and failed to write
any of the papers. Use the above information and illustre
illustrate it on a Venn diagram.
(a) How many students took’exactly one of the examination
(b)How many students took exactly two of the examination papers
(c) How many students took all the three examination papers?
(d)How many students prepared for the examination papers