Question

In order to pass a science lab, you have to measure a beaker (container) of water with 5% error or less. The beaker has 12 ounces of water in it. You measure 13.2 ounces of water. Did you pass the lab? Why or why not?

Answer 1

Data:

Error: 5%

Volume of water in the Beaker: 12oz

Your measure: 13.2oz

As the error is 5% it means that the measure can be actually 5% more or 5% less.

Then, you calculate the 5% of the measure you have to measure: 12oz

`12\cdot(5)/(100)=0.6oz`

Then, the measure you need to take to pass the lab is between: 11.4oz and 12.6oz

`12oz\pm0.6oz`
`\begin{gathered} 12oz+0.6oz=12.6oz \\ 12oz-0.6oz=11.4oz \end{gathered}`

Then, your measure of 13.2oz is not between the 5% of error. You didn't pass the lab.