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Aptitude Day 321

Percentage

Formulae:

  • a% = a/100.
  • a/b as a percent = a/b *[100]
  • Population after n years = P(1 + R/100)n.
  •  Population n years ago = P/(1 + R/100)n.
  • Value of the machine after n years = P(1 - R/100)n.
  •  Value of the machine n years ago = P/(1 - R/100)n.



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