संज्ञा हिंदी व्याकरण | Sangya Ki Paribhasha? | Class 10 Hindi Grammar | Hindi Vyakaran | Doubtnut

English Paper Class 10 2024 Leaked ? English Grammar and Writing

10 हिंदी जासूसी और मजेदार पहेलियाँ | Hindi Paheliyan | Hindi Paheliyan | Mind Your Logic

दूरी और विस्थापन | Distance And Displacement - Explained In Hindi | Class 11 Physics

The report of one survey of 100 students stated that the numbers studying the various languages were : Sanskrit, Hindi and Tamil, 5, Hindi and Sanskrit, 10, Tamil and Sanskrit, 8, Hindi and Tamil, 20, Sanskrit 30, Hindi 23, Tamil 50. The surveyor who prepared the report was fired. Why ?

There are 50 students admitted to a nursery class. Some students can speak only English and some can speak only Hindi. Ten students can speak both English and Hindi. If the number of students who can speak English is 21, then how many students can speak Hindi, how many can speak only Hindi and how many can speak only 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 ?