# Natural numbers - practice problems

#### Number of problems found: 668

- How many

How many double-digit numbers that divide by nine give the rest of seven? - Face combinations

If I have 20 sets of eyes, 20 noses, and 20 mouths, how many unique face combinations can I make? - Multiple ratio

The numbers of boy students, girl students, teachers and other staff of the school are in the ratio 14: 12: 2: 1. How many teachers are there at school if there are 216 girl students at school? - Two brothers

The two brothers have a total of 48 nuts. Two thirds of the nuts of the first correspond to 2/5 of the number of nuts of the second. How many nuts does everyone have? - Even five-digit

How many even five-digit natural numbers with different digits can be created from the digits 0 - 6? - AP members

Insert as many arithmetic sequence members between numbers 1 and 53 that the sum is 702. - Mr. Product

The product of the ages of all of Mr. Product children's is 1408. The age of the youngest child is equal to half the age of the oldest child. How many children does Mr. Product have and how old are they? - Peter and Martin

Peter and Martin played by 67 balls. After the game, Peter had 9 more balls than Martin. How many balls did Martin win? Solve the help of the equation. - 4 digit number

I am a 4 digit number. my thousand period has a first digit which is thrice the second digit, the second digit is two more than the third digit, all the rest of the digits are zeros. What number am i? - Tickets 7

Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total ticket receipts were $1950. Compared to the number of children in attendance, three-fourths as many teenagers attended. How many - Writing Numerals by name

Write numerals given the word name: two million, two hundred thousand, one hundred six - The sum

The sum of two numbers is 69 and the difference is 11. Which numbers are they? - 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 8 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 cottage. - Round

Write 5 numbers from which the number 2400 was created after rounding to hundreds. - Find whole

Find whole numbers between 155 and 232 is divisible by 2, 5 and 10. - Girls and boys

In a class of 40, 4/5 are boys, how many are girls? - Lowest terms

If 5 multiply by 4/5 the answer is 20/5. If expressed in lowest term the answer is - Students

There are 1100 students at a school. 540 students are girls, the rest are boys. 1/10 of girls are left handed. 1/8 of the boys are left handed. Work out the number of left handed students in the school. - Juice division

534 liters of juice was in a container. If every person gets 14 liter, how many people will get juice from the container?

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