Natural numbers + expression of a variable from the formula - practice problems - page 3 of 5
Number of problems found: 89
- A pastry
A pastry chef made some tarts and cupcakes. 2/9 of the tarts were chocolate, and the rest were fruit. 3/7 out of the fruit tarts were lychee tarts, and the rest were peach tarts. There were 96 peach tarts. How many tarts did the pastry chef make altogethe - Nationality 36433
There are d children in the class. Three children are of Vietnamese nationality m of Hungarian and Czech children. The remaining children have Slovak nationality. How many are there? - Even / odd numbers
a / Using variable n, write two consecutive odd numbers. b / the sum of three consecutive odd numbers is 333. What are these numbers? - Students 32361
Seven of the 28 pupils cannot ski, and x pupils cannot swim. How many students in this class can swim?
- Simple sequence
Continue with this series of numbers: 1792,448, 112, _, _ - A sports
A sports tournament has "n" teams. Each team has 17 players. Using "n", write an expression for the total number of players. - Sum of four numbers
The sum of four consecutive natural numbers is 114. Find them. - The sum 23
The sum of the first 10 terms of an arithmetic sequence is 530. What is the first term if the last term is 80? What is the common difference? - Consecutive 6402
The product of two consecutive natural numbers is 46 less than the product of the other two consecutive natural numbers in a row. Identify unknown numbers.
- Parentheses in an expression
Insert parentheses to apply: 1 2 3 4 = 5 - The land
The owner wants to divide the land with dimensions of 220 m and 308 m into equally large square plots with the largest possible area. How long will one side of the plot be? - Infinitely 3818
We have 2 numbers. If we multiplied the first number's third root by the second number's square root, we would get the number 18. Determine these 2 numbers. Calculate only the integer solution if the problem has infinitely many solutions in the set of rea - Determine 25341
In a two-digit number, the number of tens is three more than the number of ones. If we multiply the original number by a number written with the same digits but in the reverse order, we get the product 3 478. Determine the actual number. - Approximate 83298
They planted 5,600 tulips in the garden bed, an average of 50 tulips per 1 m². What is the approximate size of the flower bed?
- Lookout tower
How high is the lookout tower? If each step was 3 cm lower, 60 more were on the lookout tower. If it were 3 cm higher again, it would be 40 less than it is now. - Digit sum
The digit sum of the two-digit number is nine. When we turn figures and multiply by the original two-digit number, we get 2430. What is the original two-digit number? - Triple and quadruple rooms
Up to 48 rooms, some of which are triple and some quadruple, accommodated 173 people so that all beds are occupied. How many triple and how many quadruple rooms were there? - Two-digit number
The digit sum of thinking two-digit natural numbers is 11. When it exchanges a sequence of digits, given a number that is 27 less than the thinking number, find out which number I think. - Four integers
Find four consecutive integers so that the product of the first two is 70 times smaller than the product of the next two.
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