In a group of 500 persons, 350 can speak Hindi, 250 can speak English and 150 can speak both Hindi and English. Find the number of persons who can speak neither Hindi nor Enlgish.

In a group of 400 people, 250 can speak Hindi and 200 can speak English. How many people can speak both Hindi and English?

In a group of 400 people, 250 can speak Punjabi and 200 can speak English. How many people can speak only English?

In a group of 45 students, 22 can speak Hindi only and 12 can speak English only. If (2lambda+1) student can speak both Hindi and English, the value of lambda is

In a group of 70 people 45 speak Hindi language and 33 speak English language and 10 speak neither Hindi nor English how many can speak both English as well as Hindi language how can speak only English language?

In a survey of population of 450 people, it is found that 205 can speak English, 210 can speak Hindi and 120 people can speak Tamil. If 100 people can speak both Hindi and English, 80 people can speak both English and Tamil, 35 people can speak Hindi and Tamil and 20 people can speak all the three languages, find the number of people who can speak English but not a Hindi or Tamil. Find also the number of people who can speak neither English nor Hindi nor Tamil.

In a group of 1000 people, there are 750 who can speak Hindi and 400 who can speak Bengali. How many can speak Hindi only? How many can speak Bengali only? How many can speak both Hindi and Bengali?

In a group of people, 50 speak both English and Hindi and 30 speak English but not Hindi. If all the people speak at least one of the two languages, how many speak English?

In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. Find the probability that she reads neither Hindi nor English news papers.