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Railways NTPC (Technical Ability) Tool Engineering Question Bank Tool Engineering

  • question_answer
    Two jigs are under consideration for a drilling operation to make a particular part. Jig  A costs Rs. 800 and has operating cost of Rs. 0.10 per part. Jig B costs Rs. 1200 and has operating cost of Rs. 0.08 per part. The quantity of parts to be manufactured at which either jig will prove equally costly is:

    A) 8000                

    B) 15000

    C) 20000              

    D) 23000

    Correct Answer: C

    Solution :

    Let x= quantity of parts to be manufactured \[800+0.10\times x=1200+0.08\times x0.02x=400\]             \[x=20,000\]


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