A driving school claims an average test pass rate of 76.8 per cent. What is the least number of pupils required to achieve this result? Ah! Click here to read the solution. SelectShow> The answer is 125 as we need 96 passes out of 125 to get an average of 76.8% Related Share Brain TeaserFacebookGoogle+TwitterPinterestLinkedIn Related Brain Teaser:The Cassette RecorderJanuary 18, 2018Crack The CodeJanuary 18, 2018The Crime SceneJanuary 18, 2018The ShooterJanuary 18, 2018