Question

If 10percent of a number is subtracted from it,the result is 1800.The number is?

Answer 1

the number is 1980 ........

Answer 2

Answer:

Concept: question can be solved by using the question  asked as  any function

Given:  10percent of a number is subtracted from it, the result is 1800

To find: what is the number.

Step-by-step explanation:

let the number be x.

here 10% of a number means $\frac{10}{100} of x$

so, we can say  $0.10x$

also , it is subtracted from it means it is being subtracted from the number i.e. from x that is being assumed.

so, we can say $x-0.10x$

the result is $1800$ means the subtracted result of $x-0.10x$ is  $1800$.

so we can say $x-0.10x=1800$

or, $0.90x=1800$

or, $x=\frac{1800}{0.90}$

or, $x=2000$

therefore, the number is $2000$.

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