हाइड्रोकार्बन | Class 11 NCERT रसायन विज्ञान | 1 PM Class By Shilpa Ma'am | L5 | Hindi Medium

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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 ?

NEET 2020 - Revision In 60 Days | NCERT Class 11 Chapter 6 Anatomy of Flowering Plants Part -1 | NEET Biology

In a class Seema is 10th from the top and Bablee is 20th from the bottom. Raju is 11 ranks below Seema and 21 ranks above Bablee. How many students are in the class if list includes all the students of the class? 1) 60 2) 61 3) 62 4) Data inadequate 5) None of these