A T.V survey gives the following data for T.V viewing:
`60%` see programme A, `50%` programme B,`50%` programme C,`30%` programmes A and B,`20%` programmes B and C,`30%` programmes A and C, `10%` do not view any programme.
What percent view exactly two programmes?

A T.V survey gives the following data for T.V viewing: 60% see programme A, 50% programme B, 50% programma C, 30% programmes A and B, 20% programmes B and C, 30% programmes A and C, 10% do not view any programme. What percent view all the three programmes A,B and C?

A T.V. survey gives the following data for T.V. viewing, 60% see programme x, 50% programme y, 50% programme z, 30% programmes x and y, 20% programmes y and z, 30% programmes x and z, 5% do not view any programme What percent view exactly two programmes?

A T.V. survey gives the following data for T.V. viewing, 60% see programme x, 50% programme y, 50% programme z, 30% programmes x and y, 20% programmes y and z, 30% programmes x and z, 5% do not view any programme What percent view at least one of the programmes?

A manufacturer has three machine operators A,B and C. The first operator A produces 1% defective items,whereas the other two operator B and C produce 5% and 7% defective items respectively. A is on the job for 50% of the time,B is on the job 30 % of the time and C is on the job for 20% of the time. A defective item is produced,what is the probability that it was produced by A?

At a particular temp, the following equilibrium is attained when 50% of each reactant is converted into products. A(g)+B(g) iff C(g)+D(g) . If the amount of B in moles in doubled, the % of B converted into products is