Natural numbers - practice problems - page 6 of 92
Number of problems found: 1834
- Cows and hens
In a group of cows and hens, the number of legs is 14, more than twice the number of heads. Find the number of cows. - 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? - 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. - 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? - Factorial divisible by 75
Find the least positive integer n such that n! is divisible by 75. - Divisible by three What least value must be assigned to the unknown x so that the number 789x563 is divisible by 3?
- Divisor of two numbers Find the (greatest common) divisor of 18 and 45.
- The remainder
Find the remainder if 17²00 is divided by 18. - Solve 25 Solve for a in (a+8)/2-3(a+10)/5=1.
- Equation 94
If 9 more than twice a number is 3 less than 3 times the same number. What is the number? - Evaluate expressions Which expression equals 12? ...
- The remainder 3 The remainder is 31 when dividing a number by 45. What would the remainder be if the same number were divided by 15?
- Simple equation 12 Three times a number, divided by 2, plus 5 equals 20. Find the number.
- The sum 32 The sum of three consecutive odd numbers is 33. What are the three consecutive odd numbers?
- Twice the unknown
I am twice a certain number. If 8 is subtracted from me, the result is 6. What am I? - The sum 50 The sum of five consecutive integers is 385. Which one of these five integers is prime?
- The number 88 Write the number 88 as a product of prime factors.
- I added I added 10 to 3 times a number; the result is equal to 4 times the number. What is the number?
- Twice 2 Twice the difference between a number and 3 is equal to three times the sum of the number and 8. Find the number.
- Five and four
Five divided by four times the number is 0.25. What is that number?
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