Natural numbers - practice problems - page 5 of 92
Number of problems found: 1824
- Unknown number 35
I am a number between 121 and 149. I can be divided by both 3 and 5. What number am I? - The ratio 22
The ratio of two numbers is 5 : 4 and their LCM is 810. Find the sum of numbers . - Horses equation
Some men and equal number of horses are going somewhere. Half the sitting on the horses and rest are walking with the horses. If the number of feet on the ground is 70, how many horses are there? - The HCF
The HCF of two numbers is 18 and their product is 12960. Their LCM will be - Tailors
Find the largest number of tailors who can share either 48m or 12m of fabric equally without a reminder? - When three When three positive integers a, b, and c are multiplied together, their product is 64. Suppose a < b < c. In how many ways can the numbers be chosen?
- Equation 94
If 9 more than twice a number is 3 less than 3 times the same number. What is the number? - 280 oranges
280 oranges are divided among 50 girls and boys so that each boy gets 5 oranges and each girl gets 7 oranges. How many girls are there? - Fruits
2/3 of the fruits are cherries, and the rest are grapes. I sold 1/2 of the cherries and 1/4 of the grapes. If I had 280 left, how many fruits had I at first? - Math class
There are a total of 30 students in a math class. The number of boys is 2 more than 3 times the number of girls. How many boys are in this math class? - Digits sum
A two digit number is 3 times the sum of its digits. If 45 is added to the number, its digits are interchanged. Find the sum of the digits of the number. - With remainder What is the greatest number that divides 13850 and 17030 leaves a remainder 17?
- Exactly divisibled Find the least number that can be divided exactly by all the even numbers between 10 and 20
- Divisible by three What least value must be assigned to the unknown x so that the number 789x563 is divisible by 3?
- Ice cream 4
Ice cream sales for a shop in the last 4 months have been 200, 250, 300, and 350. What are the expected sales in the 5th month? - LCMs What is the difference between the LCM (16, 400) and LCM (15, 65)?
- LCM and HCF 3 LCM of two integers is 1237. What is their HCF?
- Cardinals and robins
Lee saw c cardinals and 5 robins in his yard. Write the expression that shows the number of birds Lee saw in all. - Older or younger The age of a man after 15 years is 4 times the age of that man 15 years before. Find his present age.
- HCF - big numbers Find the HCF of 72030 and 88200
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