# Reason - 5th grade (10y) - examples

1. Pupils
There are 27 pupils in the classroom. They can swim 21 and ski nine pupils. Neither swim nor ski three pupils. How many pupils can swim and ski?
2. Brick weight
The brick weighs 2 kg and a half bricks. How much does one brick weigh?
3. Three cats
If three cats eat three mice in three minutes, after which time 260 cats eat 260 mice?
4. Monkey
Monkey fell in 23 meters deep well. Every day it climbs 3 meters, at night it dropped back by 2 m. On what day it gets out from the well?
5. Chickens
2 chickens give 2 eggs in 2 days. How many eggs can give 8 chickens for 8 days?
6. Subtraction
How many times you can subtract the number 4 from the number 64?
7. Youth track
Youth track from Hronská Dúbrava to Banská Štiavnica which announced cancellation attracted considerable media attention and public opposition, has cost 6.3 euro per capita and revenue 13 cents per capita. Calculate size of subsidies to trip group of 28.
8. It is rectangular?
Size of two of the angles in a triangle are: α=110°, β=40°. Is it a right triangle?
9. Cats
Two cats caught two mice in two days. How many mouses will catch 6 cats for 6 days?
10. Chamber
In the chamber light is broken and all from it must be taken at random. Socks have four different colors. If you want to be sure of pulling at least two white socks, we have to bring them out 28 from the chamber. In order to have such certainty for the pai
11. Wage
Increasing the minimum wage while maintaining the other parameters of the system, unemployment will be:
12. Birthdate
Jane on birthday brought 30 lollipops and 24 chewing gum for their friends. How many friends has, if everyone receives the same number of lollipops and chewing gums? How much chewing gum and lollipops got any friend?
13. Cents
Julka has 3 cents more than Hugo. Together they have 27 cents. How many cents has Julka and how many Hugo?
14. Lentilka
Lentilka made 31 pancakes. 8 don't fill with anything, 14 pancakes filled with strawberry jam, 16 filled with cream cheese. a) How many Lentilka did strawberry-cream cheese pancakes? Maksik ate 4 of strawberry-cream cheese and all pure strawberry pancake
15. Chocolate
How many times should be broken chocolate consisting of 10 × 12 pieces to get the 120 parts?
16. Chocholate
Table of chocolate is divided into squares on its surface. Lengthwise has 15 squares and widthwise 19 squares. We must chocolate broke into individual squares. How many times we have broke it to get only individual squares? It is not permitted to break
17. Rabbits
In the hutch are 48 mottled rabbits. Brown are 23 less than mottled and white are 8-times less than mottled. How many rabbits are in the hutch?
18. Pension or fraud
Imagine that your entire working life working honestly and pay taxes and to Social Insurance (in Slovakia). You have a gross wage 730 Euros, you pay social insurance (you and your employer) monthly € 256 during 42 years and your retirement is 365 Eur.
19. Clock
What time is now, if the time elapsed after noon is 4/15 of time that elapses before midnight?
20. Group
Group of kids wanted to ride. When the children were divided into groups of 3 children 1 remain. When divided into groups of 4 children 1 remain. When divided into groups of 6 children 1 missed. After divided to groups of 5 children its OK. How many are t

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