Ariana heard the news that a new grocery store had opened up in their town, so she decided to buy some flowers for her house. She bought a bunch of 40 flowers, 2/5 of which were roses, 10 were tulips, and the rest were carnations. How many carnations did she buy?
Let's be accurate as possible and think first.
14
The number of roses in the bunch is 2 / 5 * 40 flowers = 16 flowers.

The total number of roses and tulips is 16 flowers + 10 flowers = 26 flowers.

There were 40 flowers - 26 flowers = 14 carnations.

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Thus, the answer is 14