Question

Translate to a portion and solve.90% of what is 27.90% of ... is 27

Answer 1

To solve the question

First, we will represent the unknown number by y

then we can represent the question mathematically as follow:

`90\text{ \% of y = 27}`

Solving the above

`\begin{gathered} (90)/(100)* y=27 \\ \\ (90y)/(100)=27 \end{gathered}`

Next, to get y, we will cross multiply

`\begin{gathered} 90y=27*100 \\ 90y=2700 \end{gathered}`

Dividing both sides by 90

`\begin{gathered} y=(2700)/(90)=30 \\ y=30 \end{gathered}`

Therefore, the number is 30