How To Solve 5 Marks Question

In an examination, the probability of a candidate solving a questions is (1)/(2) Out of given 5 question in the examination, what is the probability that the candidate was able to solve at least 2 questions?

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 ratio of number of 5 marks questions answered correctly by James and Shane?

Case 5 Sequential Reaction,Solved Numerical Questions with % Yield

There asre 5 questiions in a question paper. In how many ways can a boy solve one or more questions?

Solve any two sub questions from the following : Marks scored by 4 students are given below. (Marks out of 100) Draw a bar graph ：

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?

The probabilities that a student will solve Question A and Question B are 0.4 and 0.5 respectively. What is the probability that he solves at least one of the two questions ?