30 मिनट 30 सवाल Spoken English का MAHATEST

Introduction To Spoken English|Greetings (Part-1)|Greetings (Part-2)|Vocabulary

In a class, 30% students study English, 15% study Hindi and 10% study both English and Hindi. One student is selected at random. Find the probability that (i) He studies English if it known that he Hindi (ii) He studies Hindi if it is known that he studies English

In an examination of bank P.O., 40% students failed in Mathematics and 30% failed in English, while 20% failed in Mathematics and English both. What percentage of the students passed in both ?