User:Vilmer/Problem Collection

The following is my ongoing translation of "ЗАДАЧНИК" by "Григорий Остер". This is being done as an on going effort to improve my Russian. I have tried to make the translations as close to the text as possible. Grammer was minimally changed to make sense in English.

Preface
''Should I tell you a sadistic anecdote? A children's writer comes to his readers and says: "I wrote you a new book – A collection of problems in mathematics."''

''This is almost like on a birthday instead of a cake, one places on a table, a pot of porridge. But to be truthful, the book open in front of you is not really a collection of problems.''

For Teachers
No, no, the problems here are the most real. For second, third, and forth grade. They all have solutions and help strengthen the passing of associated classes of this material. Actually the main problem of the "Problem Collection" is not to strength material; in all, these problems have nothing to do with the naming "busying mathematics." I think that there will be no professional interest at placing these problems in the finals of a mathematical olympiad. These problems are for people who don't like mathematics, who got used to thinking solutions to problems as dreadful and annoying difficulty. Let them try and figure it out!

For Students
Dear guys, this book is purposely called "Problem Collection," to be able to read it during math classes and not hide under the table. If the the teacher starts freaking out, say: "I don't know anything - the Ministry of Education allowed it."

1
Firemen are taught to put on pants within three seconds. How many pants will a well trained fireman have time to put on within five minutes?

2
If one carefully crawls up to grandpa and dad from behind and suddenly shouts "Yey!", dad will jump up 18 cm. Grandpa lived through hard years and isn't as so similar, jumps up 5 cm. How many centimeters above grandpa does dad jump, hearing the sudden "Yey!"?

3
Two numbers, 5 and 3 once came into a place where thrown everywhere were different differences, and they started looking for their own. Find the difference of these numbers.

4
Tolya argued with Kolya, that he could eat 5 jars of shoe polish, but ate only 3. How many jars of shoe polish couldn't Tolya overcome.

5
Educating his failing son, dad uses up 2 trouser belts per year. How many belts were used up by dad within the whole eleven years of school, if it's known that in fifth grade his son, twice, got left back a year?

6
In an elevator the button for the first floor is 1m 20cm from the floor. The button of each next floor it higher than the previous by 10 cm. Up to what floor will a small boy, short heighted 90 cm, be able to ride in the elevator, if assuming he can reach to increase his height by 45 cm?