Answer:
(a) 625 units (Approx)
(b) 442 units (Approx)
(c) 883 units (Approx)
Step-by-step explanation:
(a) Economic Order quantity:


= 625 units (Approx)
(b) Economic Order quantity:


= 442 units (Approx)
(c) Economic Order quantity:


= 883 units (Approx)