In a class A of 25 students, 20 passed in first class; in another class B of 30 students, 24 passed in first class. In which class was a greater

fraction of students getting first class?

class A 20/25 = 4/5

class B 24/30 = 4/5

they are both the same

Both classes have the same fraction (80% or 4/5).

Step-by-step explanation:

20 is 4/5 of 25, so 80% of students in Class A passed in first class.

24 is 4/5 of 30, so 80% of students in Class B passed in first class.

Both 20/25 and 24/30 simplify to 4/5, or 80%, so both classes have the same fraction of students passing.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

step-by-step explanation: