A TV survey gives the following data for TV watching : 60% watch program A , 50% watch program B, 47% watch program C,28% watch program A & B, 23% watch program A & C, 18%watch program B & C, 8% watch programs A,B & C. Draw a Venn diagram to illustrate this information & find(i) What percentage watch programs A & B but not C (ii) What percentage watch exactly two programs.