Percentage of students passed to class X=100% - 10% = 90%
90 % of 50
=90100×50
=4500100
=45
Therefore, 45 students passed to class X.
In a class, among the students who passed, Amisha is 22nd from the top and Sajal, who is 5 ranks below Amisha, is 34th from the bottom. All the students from the class have appeared for the exam. If the ratio of the students who passed the exam to those who failed is 4:1 in that class, how many students are there in the class?
In a class of 35 students, 20 students passed and 15 failed in a certain exam. The ratio of the number of passed students to the number of failed students is:
If 20 students in a class failed an exam, the probability of a student selected at random getting passed in an exam is 0.6. The number of students in the class is = ___ .