$($a$)$ Compute EOQ and $($b$)$ Total Variable cost for the following

Annual Demand $=25$ units

Unit Price $=$ Rs $25$

Order cost $=$ Rs $4\mathrm{.}00$

Storage Cost $=1\%$ per year

Interest rate $=12\%$ per year

Obsolescence rate $=7\%$

c$)$ Compute the order quantity and the total variable cost that would result if an

incorrect price of Rs$.1\mathrm{.}60$ were used for the item