Question

When 80% of a number is added to the number, the result is 162.

Answer 1

Given:

80% of a number is added to the number, the result is 162.

Required:

To find the number.

Step-by-step explanation:

80% of a number is added to the number

`\begin{gathered} (80)/(100)x+x \\ \\ =0.8x+x \end{gathered}`

The result is 162, so

`\begin{gathered} 0.8x+x=162 \\ \\ 1.8x=162 \\ \\ x=(162)/(1.8) \\ \\ x=90 \end{gathered}`

Final Answer:

The number is 90.