4 Amazing Psychology Facts in Hindi | 4 अद्भुत मनोविज्ञान तथ्य #shorts

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 ?

Class 12 Physics (Hindi) | Chapter 4 गतिमान आवेश एवं चुम्बकत्व | Important Questions and Quick Revision

Class 10 Maths (Hindi) | Chapter 4 | द्विघात समीकरण | Important Questions | Quick Revision

Dev can hit a target 3 xx in 6 shorts Pawan can hit the target 2 xx in 6 shorts and Lakhan can hit the target 4 xx in 4 shorts. What is the probability that at least 2 shorts hit the target (2)/(3) (b) (1)/(3) (c) (1)/(2) (e) None of these

The numbers of students speaking English and Hindi are in the ratio of 4:5. If the number of students speaking English increased by 35% and that speaking Hindi increased by 20% , what would be the new respective ratio?

A group of 30 men participate in a sruvey on language skills. The number of men whoe know both English and Hindi was equal to the number of men who know neither of these language . The number of men who know English is 4 more than those who know Hindi. How many know Hindi?