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Q: What is the time required to punch 1500 cards of 45 column each at the rate of 9,000 punches per hour ?

  • 1
    8 hrs
  • 2
    7 hrs 15 min
  • 3
    7 hrs 30 min
  • 4
    8 hrs 20 min
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Answer : 3. "7 hrs 30 min"
Explanation :

Answer: C) 7 hrs 30 min Explanation: Total number of cards = 1500total columns = 45so, total punches=1500 x 45 = 67500for 1 hour if we make 9000 punches, we require 67500/9000 = 7.5so 7hours:30mins.

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