8. Determine the answer

The powder company interviewed 1000 people in a city. It was found out that $\frac{1}{2}$ use brand $A$ powder, $\frac{1}{4}$ use brand $B$ powder, $\frac{1}{5}$ use brand $C$ powder, 80 use brand $A$ and $B$ powder, 65 use brand $B$ and $C$ powder, 70 use brand $A$ and $C$ soap and $30$ use all the three brands. Find the number of people who use exactly two branded powders.

 

(i) Number of people who use exactly two branded powders $=$ .

 

(ii) Number of people who use only brand $A =$ .

 

(iii) Number of people who use only brand $C =$ .