Question : The average mark obtained by 180 students in an examination is 50. If the average mark of passed students is 80 and that of the failed students is 40, then what is the number of students who failed the examination?

Option 1: 90

Option 2: 135

Option 3: 100

Option 4: 45

Question : The average mark obtained by 150 students in an examination is 40. If the average marks of passed students are 60 and those of failed students are 20, what is the number of students who passed the examination?

Option 1: 25

Option 2: 50

Option 3: 75

Option 4: 100

Question : The average mark obtained by 140 students in an examination is 90. If the average mark of passed students is 120 and the number of students who failed in the examination is 90, then what are the average marks of students who failed in the examination?

Option 1: 60

Option 2: 73.33

Option 3: 85.66

Option 4: 88

Question : The following pie chart shows the number of students who failed in different subjects in an examination. Examine the chart and answer the following question. The total number of students who have failed is 350.

The number of students who failed in mathematics is less than the number of students who failed in all other subjects by:

Option 1: 190

Option 2: 256

Option 3: 95

Option 4: 161

Question : Directions: In a class, Ena ranked eighteen from the top and thirty-ninth from the bottom among those who passed an examination. Ten students did not appear in the examination and four failed. What is the total number of students in the class?

Option 1: 40

Option 2: 60

Option 3: 56

Option 4: 70