1.  In a class -X of 30 students, 24 passed in first class; in another class -Y of 35 students, 28 passed in first class. In which class was the percentage of students first class more?
A. Class X has more percentage of students getting first class
B. Class Y has more percentage of students getting first class
C. Both classes have equal percentage of students getting first class
D. None of the above

Answer: Option C

Explanation:

For class X, let the students passed in first class = a%

Then, by condition given in question

a% of 30 = 24

 (a x 30) /100 = 24

 a = 80%


Now, for class Y let the student passed in first class = b%

Then, according to the question,

b% of 35 = 28

 (b x 35)/100 = 28

b = (28 x 100)/35 = 80%

Hence, both classes have equal percentage of student getting first class.