Question

A number decreased by 10% gives 81. Then, number is :​

Answer 1

Answer: let take the number to be X

10% of X = 81

10/100 × X = 81

X = 81 × 100/10

X=810

Answer 2

Answer:

90

Step-by-step explanation:

Let,the number is x

therefore, x-x×10%=81

x-x/10=81

9x/10=81

x=90

Then, the number is 90