Question
The total heights of three rhinoceros is 2000 cm. Rhinoceros X is thrice as tall as Rhinoceros Y. Rhinoceros Z is twice as tall as Rhinoceros X. What is the height of Rhinoceros Z?
4 m

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The total heights of three rhinoceros is 2000 cm. Rhinoceros X is thrice as tall as Rhinoceros Y. Rhinoceros Z is twice as tall as Rhinoceros X. What is the height of Rhinoceros Z?