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A positive number Y is first increased by 10% then decreased by 50% and then increased by 100%. The series of successive changes to Y is equivalent to a single change of
  • a)
    20% decrease
  • b)
    10% decrease
  • c)
    10% increase
  • d)
    20% increase
  • e)
    No change
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A positive number Y is first increased by 10% then decreased by 50% an...
Let, y=100
i) 100*110%=110
ii) 110*50% = 55
iii) 55*200%=110
now... 110-100=10%
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A positive number Y is first increased by 10% then decreased by 50% and then increased by 100%. The series of successive changes to Y is equivalent to a single change ofa)20% decreaseb)10% decreasec)10% increased)20% increasee)No changeCorrect answer is option 'C'. Can you explain this answer?
Question Description
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