Thank you so much. I now understand where I was going wrong in the first place. the arsenal statement had me confused a bit. I appreciate the good work your doing helping students like us understand.
Glad you got it sorted out after the explanation. You can try out as many questions as possible to cover the various scenarios you can encounter on questions like this. Wishing you the very best dear
There are 40 pupils in a class. 30 of them Biology, 10 physics and 21 study Chemistry. 15 study Physics and Biology, study 10 study Chemistry and 13 study Biology and Chemistry. 2 study Physics only and 7 study Biology only. Represent this information on a Venn diagram. 1) How many pupils study all the three subjects? i) If a pupil is selected at random, what is the probability that he studies Physics or Chemistry? 2. In a class of 100 students, 40 offer Biology and 10 offer Chemistry and Biology. 10 offer Physics and Chemistry, and 30 offer Physics and Biology. Each student offers at least one of the three subjects. The number of students who offer Biology is equal to those who offer Physics only and the sum of the number of students who offer Biology and those who offer Chemistry is equal to the number of students who offer Physics. a) Illustrate the information on a Venn diagram offer b) Find the number of students who i) Chemistry only ii) only two subjects iii) only one subject iv) Physics v) Chemistry vi) Chemistry and Physics. Please two questions
Work through the playlist below, then attempt the questions. If you do, it shouldn't be tough. All the best. Set Theory and Venn Diagram: ru-vid.com/group/PLl3TIo4r2HuOeQVXnZW9jjASuxSmy2WkY
