Answer:
The items can be equally shared between 45 students.
Each student will get 3 pens, 5 books and 7 copies.
Explanation:
We have to find the GCF (Greatest common factor) of 135 , 225 and 315.
135 = 5 * 3 * 3 * 3 = 45 * 3
225 = 5 * 5 * 3 * 3 = 45 * 5
315 = 5 * 3 * 3 * 7 = 45 * 7
GCF = 5 * 9 = 45
The items can be equally shared between 45 students.
Each student will get 3 pens, 5 books and 7 copies.