Rbse Class 7 English most important question 2022 कक्षा 7 अंग्रेजी लीक पेपर वार्षिक परीक्षा

Most important question class 10 chapter 4 Quadratic equation

Following table shows the marks scored by a group of 90 students in a mathematics test of 100 marks. Marks 0-20 20-30 30-40 40-50 50-60 60-70 70-100 No. of Students: 7 10 10 20 20 15 8 Find the probability that marks scored by a student in the class is: at most 60 marks (ii) at least 60 marks (iii)not more than 50 marks

In a class test (+ 3) marks are given for every correct answer and (–2) marks are given for every incorrect answer and no marks for not attempting any question. (i) Radhika scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly? (ii) Mohini scores –5 marks in this test, though she has got 7 correct answers. How many questions has she attempted incorrectly?(iii) Rakesh scores 18 marks by attempting 16 questions. How many questions has he attempted correctly and how many has he attempted incorrectly

Question 5-7 refer to the scatterplot above. A new fitness class was started at several fitness clubs owned by the same company. The scatterplot shows the total number of people attending the class during the first five months in which the class was offered. The line of best fit is drawn. Q. At the beginning of which month did the actual number of people attending the class differ by the greatest amount from the number predicted by the line of best fit?

Read the following passage and answer the questions that follows: In a class room, four students Sita, Gita, Rita and Anita are sitting at A(3, 4), B(6, 7), C(9, 4), D(6, 1) respectively. Then a new student Anjali joins the class (i) Teacher tells Anjali to sit in the middle of the four students. Find the coordinates of the position where she can sit. (ii) Calculate the distance between Sita and Anita. (iii) Which two students are equidistant from Gita.

From the electronic configurations N (2,5), O (2,6) and F (2,7), answer the following questions: Which one of N, O and F is most electronegative?