Question : The average marks obtained by 80 students in an examination is 50. If the average marks of passed students is 55 and the number of students who failed the examination is 30, then what are the average marks of students who failed the examination?
Option 1: 41.66
Option 2: 46.66
Option 3: 40.33
Option 4: 52.33
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 41.66
Solution : Number of students = 80 Average marks of all students = 50 Number of students failed = 30 Average marks of passed students = 55 Total marks = 80 × 50 = 4000 Number of passed students = Total students – number of failed students = 80 – 30 = 50 Total marks of passed students = 50 × 55 = 2750 Total marks of failed students = Total marks – failed student marks = 4000 – 2750 = 1250 Average marks of failed students = $\frac{1250}{30}$ = 41.66 Hence, the correct answer is 41.66.
Candidates can download this e-book to give a boost to thier preparation.
Admit Card | Eligibility | Application | Answer Key | Preparation Tips | Result | Cutoff
Question : The average mark obtained by 120 students in an examination is 50. If the average mark of passed students is 70 and the average mark of the failed students is 30, then what is the number of students who passed the examination?
Option 1: 100
Option 2: 60
Option 3: 80
Option 4: 40
Question : The below bar graph shows the marks obtained by a student in an examination. What is the average mark obtained by the student?
Option 1: 50
Option 4: 30
Question : In an examination, 19% of students failed in Mathematics and 10% of students failed in English. If 7% of all students failed in both subjects, then the percentage who passed both subjects is:
Option 1: 36% of all students
Option 2: 64% of all students
Option 3: 71% of all students
Option 4: 78% of all students
Question : In an examination, 45% of students passed in history and 60% of students passed in Hindi. If 8% of students failed in both subjects, then what percentage of students passed in both subjects?
Option 1: 15%
Option 2: 10%
Option 3: 13%
Option 4: 12%
Question : The average weight of a class of 30 students is 45 kg. One of the students whose weight is 48.5 kg was replaced by another student and the average weight was increased by 200 g. Find the weight of the new student.
Option 1: 54.5 kg
Option 2: 50 kg
Option 3: 55 kg
Option 4: 51 kg
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile