Three problems, A, B and C, were given to a group of students. The Venn diagram shows how many students solved the problems. Each student solved at least one problem. A[31] det Ten youB[21] [10] [4] [5] C[22] a) how many students solved problem A only? b) find the maximum number of students who could have solved A or B or C. c) Find the minimum number of students who could have solved A or B or C. d) Given that twice as many students solved problem B only as solved problem C only, What is the probability that a student picked at random solved problem B?