Question

Ned took a test with 25 questions. He lost 4 points for each of the 6 questions he got wrong and earned an additional 10 points for answering a bonus question correctly. How many points did Ned receive or lose overall?

Answer 1

`86` is his final grade.
He lost `24` points and gained `10` points.

Explanation:

There are `25` questions total. Assuming that answering all `25` questions correctly earns you a `100`, let's calculate Ned's score.

First, Ned loses `4` points each for `6` questions he answered incorrectly. So:

`4 * 6 = 24`
`100 - 24 = 76`

His current grade is a `76`. However, he answered a bonus question and earned `10` points. So:

`76 + 10 = 86`

`86` is his final grade.

He lost `24` points and gained `10` points.