English basic class 3

English class 9 chapter 2

In a certain collage, the ratio of mathematics majors to English majors is 3:8. If in the following school year the number of mathematics majors increase 20%, and the number of English majors decrease 15%, what is the new ratio of mathematics majors to English majors?

In a class, 30% students fail in English, 20% students fail in Hindi and 10% students fail in both English and Hindi. A student is chosen at random, then what is the probability he fail in English, if he has failed in Hindi?

A bag contains 3 Maths books. 5 English books, and 4 Science books. One book is taken out from the bag. Find the probability that the book drawn is a English book.

Differentiate each function by applying the basic rules of differentiation pi^(3)

Rita scored 20 marks more in Maths than the marks scored in English. Give an expression for: a. her marks in English if her marks in Maths are x. b. her marks in Maths if her marks in English are y.