There are 14 boys and x x\,x girls in a choir. One boy and one girl will be selected to sing a duet. Taylor says there are 140 different ways of choosing a boy and a girl.
Could Taylor be correct? You must show your working.
181 exam-style questions on OCR GCSE Maths The Product Rule for Counting. Each one has a worked solution and a mark scheme showing where the marks go.