आँकड़ों का प्रबंधन | Exam Special-Revision | CLASS 7 गणित | 5 PM Class by Amit Sir |L8 | Hindi Medium

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

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. What is Keshav's rank in a class of 50 ? I. Amit, ranking 18th in the class from the top, is 7 ranks below Vivek, who is 5 ranks above Keshav: II. Saurav, the 10th from the bottom, is 20 ranks below Suresh, who is 5 ranks below Keshav.

The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls.What is the total class strength?

Previous Class Revision|NCERT प्रश्नावली 7.5 का हल भाग-2|सारांश

If the average marks of 17 students in a class is A. The marks of the students when arranged in either an ascending or a descending order was found to be in arithmetic progression. The class teacher found that the students who were ranked 3rd, 7th, 8th, 11th, 15th had copied in the exam and hence got all of them rusticated. The average of the remainder of the class was B. Then

The marks obtained by 40 students of class IX in an examination are given below: 18, 8, 12, 6, 8, 16, 12, 5, 23, 2, 16, 23, 2, 10, 20, 12, 9, 7, 6, 5, 3, 5, 13, 21, 13, 15, 20, 24, 1, 7, 21, 16, 13, 18, 23, 7, 3, 18, 17, 16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included)