In the story, Professor Gomes says that only 30% of a durian can be eaten. The parts we don’t usually eat are the seeds and husk. Have you ever looked at any fruit in this way and wondered how much — or how little — of it we eat?

In your mind’s eye, visualise eating each of these fruits. What are your smart guesstimates for how much is edible?

What are some ways in which we can use the uneaten parts of fruits? Join our contest by listing your ideas in the space below. Don't forget to add your full name, class, and school — and to click the submit button.