Today a lot of the animal firstgraders started their school attendance in our special five classes - there are only pythons in snake´s class number 1.A, cockatiels in bird´s class 1.B, turtles in class 1.C, grasshoppers in insect´s 1.D and finally some young crusaders in spider´s class number 1.E.
Most of the animals is completely normal, i.e. they have one head, snakes have no legs, birds have two legs, turtles four, insects six and spiders have eight legs.
But attention ! We have one unique animal in each class - there is one three-headed python, one two-headed cockatiel, three-legged turtle, four-legged grasshopper and one firstgrader crusader has only 7 legs.
Find out the number of animals in each class, if ...
- All animals have together 100 heads and 380 legs - In any class is not the same number of animals - Difference between the largest and smallest class is exactly 10 animals - In class 1.D you can count twice as many legs as there are in class 1.B - In class 1.A there is the same number of heads as there is in class 1.E
Today a lot of the animal firstgraders started their school attendance in our special five classes - there are only pythons in snake´s class number 1.A, cockatiels in bird´s class 1.B, turtles in class 1.C, grasshoppers in insect´s 1.D and finally some young crusaders in spider´s class number 1.E.
Most of the animals is completely normal, i.e. they have one head, snakes have no legs, birds have two legs, turtles four, insects six and spiders have eight legs.
But attention ! We have one unique animal in each class - there is one three-headed python, one two-headed cockatiel, three-legged turtle, four-legged grasshopper and one firstgrader crusader has only 7 legs.
Find out the number of animals in each class, if ...
- All animals have together 100 heads and 380 legs
- In any class is not the same number of animals
- Difference between the largest and smallest class is exactly 10 animals
- In class 1.D you can count twice as many legs as there are in class 1.B
- In class 1.A there is the same number of heads as there is in class 1.E
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