Question

What is the result when the number 28 is decreased by 23%?

Answer 1

Given:

The objective is to find the value of the number 28 decreased by 23%.

Consider the required number as x.

The dcrease in 23% of 28 can be represented as,

`\begin{gathered} (1-(23)/(100))\cdot28=x \\ ((100-23)/(100))\cdot28=x \\ (77)/(100)\cdot28=x \\ 0.77\cdot28=x \\ x=21.56 \end{gathered}`

Hence, the number 28 decreased by 23% is 21.56.