# Ratio (Medium)

**A ratio is a way of showing proportions** of amounts. For example, if there are double the number of green marbles compared with the number of yellow marbles, then we can show this by writing 2:1. This would be read as: 'the ratio of green marbles to yellow marbles is two to one'. Two parts of the marbles are green and one part is yellow, but: what is 'part(s) of' as a fraction? It's easy: 2 + 1 = 3, so ^{2}⁄_{3} are green, and ^{1}⁄_{3} is yellow.

You would deal with other ratios in a similar way. This 11-plus Maths quiz is our easiest of the two on ratios. Give it a go and don't move on until you've got all ten questions correct. You might find having some paper and a pencil a handy addition. That way, you can write out (or even draw) the ratios.

Don't forget to read the helpful comment after each question. Good luck!

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