Number of classrooms in the school are 18
Explanation:
- Step 1: Let the number of classrooms be x. Form an equation with given information.
Number of desk per classroom = 26
Additional desks bought = 75
Total number of desks in HCS = 543
⇒ 26x + 75 = 543
⇒ 26x = 543 - 75 = 468
⇒ x = 468/26 = 18