Comparing + reason - practice problems
Number of problems found: 61
- Inequality 12021
Solve on Z - inequality with absolute value: | x-18 | +4> 1 - How many
How many numbers are less than 222 with a digit sum is 8? - Televisions
Television is the fifth most expensive and tenth cheapest TV. How many different TVs are in stores? - Smallest 80368
What is the smallest whole number to replace the known x for: 9> x/3> 4. - Contradiction 55571
Use the truth table to evaluate the truth of the compound statement (a) [P ∧ (Q ∨ R)] ⇔ [(P ∧ Q) ∨ (P ∧ R)] (b) ¬(P ⇒ ¬Q) ⇒ (¬P ∧ Q) and decide each time whether it is a tautology or A contradiction. - Martina 4731
Martina is four years older than her brother. How many years older than a brother will he be in 8 years? - More money
Lenka has €4.8 more than Natalia. Who will have more and how much when Lenka gives Natalia €2.5? - Buildings
The school stands 110 m from the church, which is 100 m beyond the town hall. Which buildings are closer to the church, and how many times? - Double-digit 7736
How many double-digit numbers lie on the number axis closer to the number 31 than to the number 100? - Triceratops 2868
Triceratops was admitted to the enclosure 10 minutes earlier than Stegosaurus but 6 minutes later than Diplodukos. Diplodukos was the first to leave the enclosure 7 minutes before Stegosaurus and 10 minutes before Triceratops. How many minutes were the Tr - 214568793 62744
Find the three digits that need to be deleted from 214568793 to make the number as small as possible. What is the sum of these deleted digits? - Seeds
From a box of spruce seeds with a germination of 80%, we randomly selected ten seeds and planted them. Find the median of the random variable: the number of germinating seeds. - Positive integers
Several positive integers are written on the paper. Michaella only remembered that each number was half the sum of all the other numbers. How many numbers could be written on paper? - According 7038
When students are ranked according to height, Katka is 12th Front and 17th Back. How many children are in the class? - Darina 5340
If Zina gives Darina one apple, then both girls will have the same. How many more apples does Zina have now than Darina? - Statements 17733
There are 24 students in the class, and 5/8 of them are girls. Which of the following statements is true: And there are 15 boys in the class, B there are more boys than girls in the class, There are 9 boys and 15 girls in C's class - Root
The root of the equation (x-10)² +4 = x² +35x is (equal or greater or less than zero). ... - Consecutively numbers
How many ways are there to arrange the numbers 3, 2, 15, 8, and 6 so that the even numbers are arranged in ascending order (not necessarily consecutively)? - Horses 2773
Horses, sheep, and ducks graze in the meadow. Sheep are more than ducks. Sheep and ducks have a total of 100 heads and legs. Ducks and sheep are three times more than horses. How many horses are there? - 600 pencils
Six hundred pencils we want to be divided into three groups. The biggest groups have ten pens more than the smallest. How many ways can this be done?
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