Natural numbers - practice problems - page 4 of 87
Natural numbers are all positive integers from 1 to infinity. They are also called counting numbers as they are used to count objects. Zero is not natural number. It is represented by numerals as 1,2,3.... 8, ..., etc.Number of problems found: 1731
- Known hcf and find lcm
Given that HCF (306, 657) = 9, find LCM (306, 657). - LCM or HCF Find the lowest common multiple of these two numbers: 105 226
- GCD&LCM of three GCD of three numbers is 30 and LCM is 900. As two the are 60 and 150, find the number.
- Deon made
Deon made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was 18.40. If the beads cost a total of 9.60, how much did each pendant cost?
- Add five to lcm The least number, which, when diminished by 5, is divisible by each of 21, 28, 36, and 45.
- Greatest number What is the greatest number that will divide 62, 78, and 139, leaving remainders 2, 3, and 4, respectively?
- A number 8 A number K is such that when it is divided by 27, 30, or 45, the remainder is 3. Find the smallest possible value of K
- Big cities
City A has a population of 136000 which is decreasing at the rate of 2400/yr. City B has a population of 84000 which is increasing at the rate of 1600/yr.In how years will the population of two cities become equal? - Unknown en I think of a number. If I subtract 9 from it and multiply this difference by 4, the result is 128. Form an equation and solve it to find the number.
- Write 8
Write an expression for the total cost using the variable x. A bus company charges $35 to rent a bus for the day plus $4.50 for each student. - Repeating to infinity
How do I express 0.99999999… as a fraction? (nine repeating) Another questions: Can you write .9999 repeating as a fraction? How do you turn 0.9 repeating into a fraction? - LCM and HCF 2 If the product of two numbers is 5780 and their HCF is 17, then what is their LCM?
- Empty rooms
In the tourist dormitory, 44 students slept in eight rooms, some of which were four-bed and others six-bed. When two beds were empty, how many four-bed and six-bed rooms were there in the dormitory? - The HCF
The HCF of two numbers is 18 and their product is 12960. Their LCM will be
- The ratio 13
The ratio of boys to girls in Mr. Hakeem's class is 6:4. If there are 18 boys, how many girls are there? - Horses and hens
In a park, there are some horses and some hens. If total number of heads 68 and number of legs together is 198. Then find the number of hens in the park. - 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?
- 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?
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