3 - 4 Mark Questions#!#Exam Preparation - Part 2

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A question paper consist of questions, each carrying (1)/(2) mark, 1 mark and 2 marks ini the ratio 2:2:1. if the maximum mark in the exam is 100, then find the number of questions of each type.

The Table given below presents the marks obtained by three students in five examinations What is the sum of marks obtained by S1 in Exam E4 ,S2 in Exam E1,S3 in Exam E3 and E5 ?

The means and standard devation of the marks of 200 candidates in half early exam were found to be 40 and 15 respectively. The marks of the candidates exceeds their marks by 10 in final exam. The mean and standard deviation of the marks in final exam are respectively ?

Statements: All exams are tests No test is a question Conclusions: I. Atleast some exams are question II. No exam is a question.

Directions: In a Mathematics exam of 50 marks, there are five questions of 1 mark each, fifteen questions 2 mark each and 3 questions of 5 mark each. Given below is a table that shows number of correct answers of some students in different categories and then total marks out of 50. Some fields have been left as empty and then respective values needs to be calculated if the need arises. Based on this information, answer the questions that follow. What is the average marks scored by four students answering 2 marks questions only?

A mock IIT-JEE exam constitutes of 150 questions. Each correct answer fetches 4 marks . There is a penally of 2 marks for every incorrect answer and a penalty of 1 mark for every unattempted question Find the percentage of marks scored by the students by attempting 120 questions of which 33 .(1)/(3)% are incorrect.