(B) The Venn diagram below shows the number of students doing Mathematics (M), Accounts (A) and French (F) in a class of 50. E M A. F 2x 2 X 3 .x-1 10 (i) Write down an expression, in terms of x, for the number of students who do Accounts. (ii) Write down an equation, in terms of x, which shows the information in the Venn diagram. (iii) Determine the number of students who do Mathematics only. (iv) Determine the number of students who do French. (8 marks)​