Which percentage below is the best estimate for the amount of the bar shaded black?

A selection of people with a Facebook account were asked their ages. To the nearest $5%$5%, approximately what percentage of people were aged $15$15 to $25$25?

What percentage of the triangles are shaded blue?

Outcomes

NA4-3

Find fractions, decimals, and percentages of amounts expressed as whole numbers, simple fractions, and decimals