Question

2 points
If a number is decreased by 27.27% it becomes 80 .find the original
number?
O 100
200
O 120
w
O 110
Other:
0
This is a required question
The radius of a circle is increased such that the circumference of the
2 points​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

X = 110

Step-by-step explanation:

Given that , a number is decrease by 27.27% and its become 80.

To find the original number?

So,

     Let the original number be X.

      27.27% of X = 27.27% of X

                           = $\frac{27.27}{100} *X$

                           = $\frac{27.27X}{100}$

    orginal number X decrease by 27.27% of  its,and equal to 80.

      $X-\frac{27.27X}{100} = 80\\\\100X - 27.27X = 8000 ~~~~~~~~~ (multiply~~by~~100~~both ~~sides)\\\\72.73X=8000\\\\X =\frac{8000}{72.73}\\ \\X = 109.995875\\\\X = 110 ~~~~(approx)$

Therefore, the original number is 110 .

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