1500 families were surveyed and following date was recorded about their maids at home
`{:(" Type of maids "," Only part time "," Only full time "," Both "),(" Number of families"," 860"," 370"," 250"):}`
A familiy is selected at random. Find the probability that the family selected has
(i) Both types of maids (ii) Part time maids (iii) No maids

Answer

(i) `(1)/(6)` , (ii) `(43)/(75)` , (ii) `(1)/(75)`