Unit 7 · Data and Percentage
Zoo Animals — Snakes, Lizards, Birds
Lesson 4 of 9
About this lesson
A zoo has snakes (0 legs), horses (4 legs), and eagles (2 legs). Nine animals, 10 legs total — what is the highest possible number of snakes? The trick: maximising one type means minimising the others, and you can only try a handful of combinations.
Chapters
Question
At a zoo there are snakes, horses and eagles.
Snakes have no legs, horses have 4 legs, and eagles have 2 legs.
There are 9 of these animals altogether with 10 legs in total.
What is the highest number of snakes that can be at the zoo?
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