Daily use words in hindi & english

The probability that a student selected at random from a class will pass in Hindi is 4/5 and the probability that he passes in Hindi and English is 1/2 . What is the probability that he will pass in English if it is known that he has passed in Hindi ?

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. (a) Find the probability that she reads neither Hindi nor English news papers. (b) If she reads Hindi news paper, find the probability that she reads English news paper. (c) If she reads English news paper, find the probability that she reads Hindi news paper.

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

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 760 persons , 510 can speak Hindi and 360 can speak English .Find : how many can speak both Hindi and English

In a group of 800 people,550 can speak Hindi and 450 can speak English.How many can speak both Hindi and English?

In a group of 950 persons,750 can speak Hindi and 460 can speak English.Find: How many can speak both Hindi and English.How many can speak English only.How many can speak Hindi only

In a class of 60 students, 25 speaks. Hindi, 45 speak English. How many of them speak both English and Hindi, if each student speaks either English or Hindi?