Question

Paige got an 87.5% on her world history exam. There were 40 question. How many of the 40 questions did she answer correctly?

Answer 1

`color(blue)("No. of questions Paige correctly answered " = 35`

Explanation:

Total No. of questions = 40

Marks obtained by Paige = 87.5% = 87.5 / 100#

`:.` No. of correct answers `= 40 * (87.5/100)`

`=> (cancel(40)^color(red)(2) * 87.5) / cancel(100)^color(red)(5)`

`=> (2 * 87.5) / 5 = cancel(175)^color(red)(35) / cancel5`

`color(blue)("No. of questions Paige correctly answered " = 35`