# The easiest examples

- Three cats

If three cats eat three mice in three minutes, after which time 140 cats eat 140 mice? - Divisibility

Is the number 146025 divisible by 6? - Chocolate

Ivan bought 7 same chocolates for 28 Eur. How many euros he pay for 21 chocolates? - One half

One half of ? is: ? - Inflation

What is better for people (employees)? ? - Brick

One brick is 6 kg and half a brick heavy. What is the weight of one brick? - Family

The parents had 3 daughters. Each of them had one brother. How many members family had? - Orchard

7 trees in 5 lines grows in the orchard. How many trees are in the orchard? - Balls

I have 18 balls and my friend has 32. About how many has my friend more balls? - Cyclist

A cyclist passes 88 km in 4 hours. How many kilometers he pass in 8 hours? - Proof PT

Can you easy prove Pythagoras theorem using Euclidean theorems? If so, do it. - Compare

Compare fractions ?. Which fraction of the lower? - Reverse Pythagorean theorem

Given are lengths of the sides of the triangles. Decide which one is rectangular: Δ ABC: 77 dm, 85 dm, 36 dm ? Δ DEF: 55 dm, 82 dm, 61 dm ? Δ GHI: 24 mm, 25 mm, 7 mm ? Δ JKL: 32 dm, 51 dm, 82 dm ? Δ MNO: 51 dm, 45 dm, 24 dm ? - Is right?

Is triangle with sides 51, 56 and 77 right triangle? - Laws

From which law follows directly the validity of Pythagoras' theorem in the right triangle? ? - 7 heroes

5 heroes galloping on 5 horses behind. How many ways can sort them behind? - Holidays

Calculate how many hours take holidays, if take 7 weeks. - Compare

Compare with characters >, <, =: 85.57 ? 80.83 - Vans

In how many ways can 5 shuttle vans line up at the airport? - Root

The root of the equation ? is: ?

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