GATE PI · 2025 · PI
Question 63: Reliability and Maintenance
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Question 63
PINAT2 marksNeeds review
The table shows the data of running a machine for five years. The original machine cost is Rupees 70,000. In order to minimize the average total cost per year for running the machine, the machine should be replaced after ________ years. (Answer in integer)
| 1ˢᵗ year | 2ⁿᵈ year | 3ʳᵈ year | 4ᵗʰ year | 5ᵗʰ year |
|---|---|---|---|---|---|
Resale value (Rupees) | 4000 | 3000 | 2500 | 2200 | 2000 |
Maintenance cost (Rupees) | 1900 | 2030 | 2350 | 3500 | 4000 |
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2025PI
GATE PI 2025 · Paper 1
Production and Industrial Engineering · Original paper archive
- Section
- Production and Industrial Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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