प्रकाश | CLASS 7 - विज्ञान | 4 PM Class by Nishtha ma'am | L3 Hindi Medium

Problems Based on class 1, 2, 3 and 4

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 ?

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 ?

Problems based on Class 3 and 4

The number of boys and girls in a class are in the ratio of 3 : 4 Find the strength of the class if there are 10 more girls than there are boys.