1. Log
Worker cut his thick log to 6 pieces for 30 min. How long he cut log to 12 pieces?
2. Quotient 3
If the quotient of 8/13 and 2 is subtracted from the product of 1 3/4 and 8/21, what is the difference?
Fill letters instead of digits so the indicated sum (equal letters represent equal digits). What number is hidden under the letter J? A A H A H O A H O J -------------------------- 4 3 2 1
4. Water level
To cuoid shaped poll, bottom size 2m and 3.5m; flows water at a rate of 50 liters per minute. How long will take to water reach level 50 cm?
5. Sick
Sick Marcel already taken six tablets, which was a quarter of the total number of pills in the pack. How many pills were in the pack?
6. Number
I think the number. If I add to its third seven I get same as when to its quarter add 8. Which is the number?
7. Clotheslines
Mommy needs 6 clothesline 360 cm long. Clotheslines is sold in the length of eight meters. How many of these clotheslines must buy mom if any does not want to be connected? How much mommy pay for the clotheslines when 1 piece costs 24kč?
8. Kilo candy
One kilogram of chocolate candy cost 10 euros. Kate buys 250 grams and had the 8 pack of candy. How much does cost one bonbon?
9. Elevator
The panel house has ten over-ground floors and four underground. The lift goes from the ground floor to 2nd floors, then goes down to 3rd underground floors, then 9 floors up and finally 4 floors down. To what story elevator come? How many floors did it cr
10. LCM of two number
Find the smallest multiple of 63 and 147
11. Family
Mom is 39 years old. Karl is eight years and Paul 4 years. For many years mother would old just like two children together?
12. Seeds
Of the 72 wet seeds 7/8 germinated. How many seeds germinate?
13. Stew
To prepare stew for 10 loggers we need: 2.5 kg of potatoes, 0.8 kg of meat, 18 dag of flour, 30 dag onion and 1 bread. What is the required amount of raw materials for 50 participants camps where loggers eats 1.5 times more than a participant of the camp?
14. Families
In class we investigated how many children have family in which its live. How many% of pupils live in families with more than two children? If five families each have one child in 9 families have 2 children, in 5 families have 3 children, in 2 families ha
15. Cube
One cube has edge increased 5 times. How many times will larger its surface area and volume?
16. MO Z6-6-1
Write integers greater than 1 to the blanks in the following figure, so that each darker box was product of the numbers in the neighboring lighter boxes. What number is in the middle box?
17. Clay
How many cubic centimeters of clay is in a pit of dimensions 4 m x 3 m x 3 m?
18. Milk
Mum bought 16 cartons of milk. One carton of milk weight 0.925 kg. How many weight all purchase?
19. Mountain
Mountain has the elevation 7450 meters and in the morning is the middle portion thereof in the clouds. How many meters of height is in the sky if bellow the clouds is 2,000 meters and above clouds are two fifths of elevation of the mountain?
20. How old
The student who asked how many years he answered: "After 10 years I will be twice as old than as I was four years ago. How old is student?

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