# The easiest examples

- Three cats

If three cats eat three mice in three minutes, after which time 210 cats eat 210 mice? - Divisibility

Is the number 109433 divisible by 7? - Chocolate

Charlie bought 7 same chocolates for 14 Eur. How many euros he pay for 27 chocolates? - One half

One half of ? is: ? - Inflation

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

The parents had 2 daughters. Each of them had one brother. How many members family had? - Brick

One brick is 2 kg and half a brick heavy. What is the weight of one brick? - Orchard

5 trees in 3 lines grows in the orchard. How many trees are in the orchard? - Balls

I have 12 balls and my friend has 18. 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? - Compare

Compare fractions ?. Which fraction of the lower? - Laws

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

Is triangle with sides 24, 51 and 45 right triangle? - Proof PT

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

Given are lengths of the sides of the triangles. Decide which one is rectangular: Δ ABC: 73 m, 66 m, 51 m ? Δ DEF: 63 cm, 105 cm, 84 cm ? Δ GHI: 50 dm, 48 dm, 14 dm ? Δ JKL: 31 m, 45 m, 40 m ? Δ MNO: 28 m, 53 m, 45 m ? - Compare

Compare with characters >, <, =: 63.79 ? 63.79 - Holidays

Calculate how many hours take holidays, if take 1 weeks. - 7 heroes

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

The root of the equation ? is: ? - Vans

In how many ways can 7 shuttle vans line up at the airport?

Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.