Post-Assessment Instruction: Let us determine how much you already know about solving problems using Venn diagrams. Read each item carefully. Provide the correct answer by writing it on your answer sheet. For items 1 - 4, a researcher floated a questionnaire which aimed to determine the TV station preferences of Grade 7 students. The answers of 40 students are shown in the Venn diagram. 1) How many students prefer TV Station 3 only? 2) How many students like both TV Station 3 and TV Station 10? Station 3 Station 10 10 is 8 3) How many students choose neither of the two TV Stations? 4) How many students select TV Station 3 7 or TV Station 10? For items 5 - 10, a survey was conducted to determine who regularly buys cell phone products. The numbers are shown in the diagram below.​