The ratio of right-handed men to left-handed men is 7:3
The ratio of right-handed women to left-handed women is 11:1
What fraction of the factory workforce is right-handed?
New GCSE Maths question: Ratio and proportion is the buzz thing! How are your students going to tackle it? pic.twitter.com/RyPsmc9z4m— m4ths.com (@m4thsdotcom) December 16, 2015