If Orlando missed 5 out of 40 questions on the test, what percent of the questions did he get right?

1 Answer
Alan P.
Nov 1, 2016

color(green)(87.5%)

Explanation:

Orlando got 40-5=35 out of 40 right.

That is he got 35/40 right.

As a percentage:
color(white)("XXX")35/40=35/cancel(40)_2xxcancel(100)^5/color(red)(100)

color(white)("XXXXX")=(175/2)/color(red)(100)

color(white)("XXXXX")=87.5/color(red)(100)

color(white)("XXXXX")=87.5 "per 100"

color(white)("XXXXX")=87.5% (since "per cent" means "per humdred")

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