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 ?

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Mathematics

asked Sep 07, 2023 at 09:12

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Answer 1

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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

answered Sep 07, 2023 at 09:12

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Answer 2

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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