winter impressions of Germany

Winter in Denia

Challenge 16

 

A set of weighing scales measures weight in kilograms. A boy, a girl, and a dog stand on the scales in three different ways.

How heavy would the boy, girl, and dog weigh together?

Challenge 15

Challenge 15
Birds in Trees

There are 2 trees in a garden (tree "A" and "B") and on the both trees are some birds. The birds of tree A say to the birds of tree B that if one of you comes to our tree, then our population will be the double of yours. Then the birds of tree B tell to the birds of tree A that if one of you comes here, then our population will be equal to that of yours. Now answer: How many birds in each tree?

Answer from Greece

Winter in Lithuania

Winter in Lithuania from Laima Cepulinskiene