A number is decreased by 10 and then increased by 10 The number so obtained is 10 less than the...........

Quantitative Aptitude ( CCS) Percentage

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 ?

800

900

1000

1200

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

Hence, option 3 is the correct answer.

Submit Error