Economic Order Quantity

14.A company uses Economic Order Quantity (EOQ) to arrive at optimal quantity for its single raw material. The following data relates to the inventory costs:

Purchase price $15 per item
Carriage costs $30 per order
Ordering costs $10 per order
Storage costs 20% of purchase price

Annual demand is 5,000 units.
What is the EOQ to the nearest whole unit?

A.177 units
B.100 units
C.365 units

Answer is B. 100 Units How ??

according to my calculations its 365 = square root (2*40*5000)/3