 आबी दबग लाग लेग़ा अदर् catastrophe. अबी दबग लीग़ा इस बागना आब, जचवरँटवाग़ परढ़े, वरी विद. यो के अंवेन्ट्री में होगी जब हमारा प्रडक्षन रन ख़ाईगागागा. तो आप इंट्टेद अफ दिस्व ख़न्टिए आपट्टीग आप डलग ख़न्टीए एक तो, रन ब क्षे अप आप इस के अंदर दि मानड भी उजोगे यह वो भी मेत होगी. this is the re-order point, we have to place the order here, we have determined that this quantity will be there, so we will place the order here this is our lead time, we have placed the order here and we have received the new order here so this basically is our lead time, again lead time if we look at the optimum quantity, in calculation what is happening is this is basically your EOQ model we have added this in this, P divided by P minus D square root P is production rate and D is demand rate so we have added this in this EOQ model and because of this we have P O Q production order quantity model and after this when we calculate it, the re-order point will not change, we have to calculate it the same way which we used before what will be the maximum inventory level in this? basically maximum inventory level is your total production during the production run how much did you produce? let's say one week production run, so one week total production run minus total demand during that one week period, the production run so the quantity left you will be able to build up that inventory and that will be your maximum inventory so that is basically P T P is production rate multiplied by the time D T is demand rate multiplied by the time, so we have the maximum inventory now the thing is that if we convert this into QP, QP is quantity production quantity so basically what is the time of T? this quantity produced depends upon the production rate that means quantity divided by production rate will give you the time so in this equation we have to replace T with QP divided by P so we have the value of maximum inventory that is QP multiplied by 1 minus D over P so that is the maximum inventory which we have calculated now if we have to do the inventory holding cost, the setup cost will be the same the difference will be between the holding cost and the maximum inventory so maximum inventory divided by 2 is average inventory because the rest of the QP is not your maximum inventory EOQ model was Q divided by 2 but either Q divided by 2 will not happen either maximum inventory divided by 2 will happen and multiplied by H and we have basically QP divided by 2 multiplied by 1 minus D over P multiplied by H that is your inventory holding cost which is average inventory so in this case if the safety stock is not kept in this case you will get the value of this