त्रिभुज और उसके गुण | CLASS 7 - गणित | 5 PM Class by Amit Sir | L3 Hindi Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L3 English Medium

Acids,Bases and pH - Class 10 Science | 7 PM Master Class By Vipin Sir

Class 11 के बाद क्या ? Class 12 Hindi Medium की पढ़ाई साल के शुरू से कैसे करें ?

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

The probabilities of a student getting first class or second class or third class in an examination are (2)/(7) , (3)/(5) ,(1)/(10) respectively . The probability that the students fails is .