Numbers - math word problems - page 303 of 312
Number of problems found: 6228
- Number divisibility puzzle
The number X is the smallest natural number whose half is divisible by three, a third is divisible by four, a quarter is divisible by eleven, and its half gives a remainder of 5 when divided by seven. Find this number. - Prime number
Jan wrote any number from 1 to 20. What is the probability that he wrote the prime number? - Candy division proof
Mickey got so many candies that all the digits in this number were the same. Prove that whenever he can divide such several candies into 72 equal piles, he can also divide them into 37 equal piles. (Note: candies cannot be broken) - Numbers 6D
Find out how many natural six-digit numbers exist whose digit sum is four. - Four-digit eight count How many four-digit numbers are there in which there are at least three eights
- How many 13
How many ways can X³ y⁴ z³ be written without an exponent? - Natural number digits
There is no 0 in the decimal notation in natural numbers; there are even numbers or odd numbers, each at least once. Find the number of all k-digit natural numbers. - Leader captain selection
How many ways can a 6-member football club member choose a leader and captain from among themselves? - Shelf
How many ways are there to arrange 6 books on a shelf? - Work time
The carpenter did the work in 3 2/5 hours. What part of the work did he do in an hour? - Dice probability greater
What is the probability that the number a) greater than 4, b) Will the number greater than four fall on the dice roll? - Number divisibility
What is the probability of any two-digit natural number a) is divisible by seven, b) is divisible by nine, c) is not divisible by five. - Digit sum
How many are three-digit numbers that have a digit sum of 6? - Dices
We will throw two dice. What is the probability that the ratio between numbers on the first and second dice will be 1:2? - Four-digit numbers Find all four-digit numbers whose decimal notation begins with a 6 and ends with a 2 and is divisible by 24.
- Equation algebraogram
Solve the equation: oco + ivo = cita How many solutions does the problem have? - Forest area
The Earth's surface is approximately 510,000,000 km². The forest area is about 38,000,000 km². Write a fraction in the basic form. What part of the Earth's surface is formed by the forest? - Twos
Victor started writing the number this year, 2019202020192020, into the workbook. And so he kept going. When he wrote 2020 digits, he no longer enjoyed it. How many twos did he write? - Nicolas
Nicolas and his father can repair one desk in 1/3 hour. How many desks can they repair in 3 hours? - Letter equality puzzle
Add the same numbers after the same letters and different numbers after the other letters so that equality applies: KRAVA + KRAVA = MLIEKO, where K is an odd digit.
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