A farmer has three cherry trees, composed by simple and double cherries. In each tree, a quarter of the cherries are double. A half of the double cherries are green whereas the others are red. One tenth of red double cherries have been eaten by birds.
We know there is 400 cherries in each tree. How many red double cherries are there in all trees?
Cherries 2Cherries
First math exercise
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– 25 March 2008
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