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#32290 Bangla Language & Literature Fraction and Decimal Level 0

If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after four strockes?

  1. A 1/4
  2. B 1/8
  3. C 15/16
  4. D 7/8
Answer: C - 15/16

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