Equation + natural numbers - practice problems - page 7 of 22
Number of problems found: 437
- Represent 64064
Together, they keep 110 poultry (hens, turkeys, ducks, and geese) on the farm. Hens represent half. There are ten turkeys and seven ducks, more than geese. How many geese are kept on the farm? - Assembling 63964
Little Pavel was assembling building blocks (a cube is shaped like a cube). He wanted to build a big cube. However, he had 75 dice left, so he increased the edge by one die. Then he was missing 16 dice. How many cubes did he have in the kit? - Horses 63954
A herd of horses grazes in the meadow. They have 78 legs more than their heads. How many horses are in the herd? - Newspapers 63904
From Monday to Friday, 9650 newspapers were sold, on Tuesday 1680 were sold, on Monday 50 more than on Tuesday, on Wednesday the same as on Tuesday and on Thursday 2x more than on Tuesday. How many newspapers were sold on Friday?
- Arithmetic 62644
The sum of the two numbers is 18, and their difference is 10. What are the numbers? Calculate the arithmetic mean of the product and the proportion of these numbers. - Right triangle generator
Detective Harry Thomson found on the Internet a generator of the lengths of the sides of right triangles according to which he must apply: a = 2xy, b = x² - y², c = x² + y², where are natural numbers and x & gt; y. Is it a working generator? - Tournament 61544
In an amateur chess tournament, everyone plays with everyone. There are a total of 171 chess games on the program. How many players take part in the match? - Peter and Martin
Peter and Martin played by 67 balls. After the game, Peter had nine more balls than Martin. How many balls did Martin win? Solve the help of the equation. - 4 digit number
I am a four-digit number. My thousand period has a first digit which is thrice the second digit, and the second digit is two more than the third digit. All the rest of the digits are zeros. What number am I?
- One-third 60291
In the classroom, 50% of students come from other districts. One-third of them commute by bus, a fifth by bike, and seven pupils walk. How many students are in the class? - Three dices
What is the probability that the sum of points 14 will be a roll of three dice (B, M, Z)? - Three cottages
141 guests are accommodated in 3 cottages. In the second cottage, there are eight guests more than in the first cottage, and in the third cottage, there are 14 guests more than in the second cottage. Find out how many guests are staying in the first cotta - Thrice
Thrice a number increased by twenty is four times the number decreased by fifteen. Find this number. - Children 58031
The children talked about how they spent the holidays at school. 2/3 of them were on holiday with their parents. There were ten children by the sea, which is 5/8 of those who were on vacation. How many children are in the class of children?
- Production plan
The annual production plan was exceeded by 2%. If production were higher by 300 products, the plan would be exceeded by 5%. What was the annual production plan? - 1/4 of
1/4 of the school's pupils have honors, of which 1/5 have all marks one. How many pupils does the school have if it boasts 12 children with only one? - Difference 56811
I think the number. The difference between nine times and four times the unknown number is 625. What number do I think? - Four-digit 55481
Find all four-digit abcd numbers to which: abcd = 20. ab + 16. cd, where ab and cd are double digits numbers from digits a, b, c, and d. - Martina
Martina is solving the equation 4x - 11 = 2x + 391. Here are the first steps of her solution. 4x - 11 = 2x + 391 2x - 11 = 391 2x = 402 What did Martina do to get 2x - 11 = 391?
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