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A manufacturer can produce 12000 bearings per day. The manufacturer received an order of 8000 bearings per day from a customer. The cost of holding a bearing in stock is Rs. 0.20 per month. Setup cost per production run is Rs. 500. Assuming 300 working days in a year, the frequency of production run should be
[2014]
  • a)
    4.5 days
  • b)
    4.5 months
  • c)
    6.8 days
  • d)
    6.8 months
Correct answer is option 'C'. Can you explain this answer?
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To determine the frequency of production runs, we need to consider the demand for bearings from the customer, the production capacity of the manufacturer, and the cost factors involved.

Given data:
- Production capacity: 12,000 bearings per day
- Customer demand: 8,000 bearings per day
- Cost of holding a bearing in stock: Rs. 0.20 per month
- Setup cost per production run: Rs. 500
- Working days in a year: 300

Let's break down the solution into the following steps:

1. Determine the annual demand:
Annual demand = Customer demand per day * Working days in a year
Annual demand = 8,000 * 300 = 2,400,000 bearings

2. Calculate the number of production runs required:
Number of production runs = Annual demand / Production capacity
Number of production runs = 2,400,000 / 12,000 = 200 runs

3. Determine the cost of holding the bearings in stock:
Cost of holding bearings in stock = Cost per bearing * Number of bearings * Holding time
Holding time = 1 month = 1/12 year
Cost of holding bearings in stock = 0.20 * 12,000 * (1/12) = Rs. 240

4. Calculate the total setup cost:
Total setup cost = Setup cost per production run * Number of production runs
Total setup cost = Rs. 500 * 200 = Rs. 100,000

5. Determine the frequency of production runs:
Frequency of production runs = Total setup cost / Cost of holding bearings in stock
Frequency of production runs = Rs. 100,000 / Rs. 240 = 416.67

Since the frequency of production runs cannot be a fraction, we round it up to the nearest whole number.

Therefore, the frequency of production runs should be approximately 417 runs.

Converting this into days:
Frequency of production runs = 417 runs / 300 working days = 1.39 days

Rounding it up to the nearest whole number, the frequency of production runs should be approximately 2 days.

Therefore, the correct answer is option (c) 6.8 days.
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A manufacturer can produce 12000 bearings per day. The manufacturer received an order of 8000 bearings per day from a customer. The cost of holding a bearing in stock is Rs. 0.20 per month. Setup cost per production run is Rs. 500. Assuming 300 working days in a year, the frequency of production run should be[2014]a)4.5 daysb)4.5 monthsc)6.8 daysd)6.8 monthsCorrect answer is option 'C'. Can you explain this answer?
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