A

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Q. A number is decreased by 10% and then increased by 10%. The number so obtained is 10 less than the original number. What was the oiginal number ?

  • (A) 1000
  • (B) 2000
  • (C) 3000
  • (D) 4000
  • Correct Answer - Option(A)
  • Views: 12
  • Filed under category Math
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Explanation by: Admin

Let the original number be x.
Final number obtained = 110% of (90% of x) =(110/100 * 90/100 * x) = (99/100)x.
x-(99/100)x=10
=> x =1000

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