Question

Bridget and Caroline are marking exam papers. Each set takes Bridget 91 minutes and Caroline 2 hours. Express the times Bridget and Caroline take as a ratio in its simplest form.

Answer 1

The ratio is 91/120 because 91 is only divisible by 1, 7, 13, 91 and 120 is not divisible by 7, 13, or 91 so you cannot reduce this ratio