Natural numbers - practice problems - page 4 of 92
Number of problems found: 1826
- Remainder one
Find the least number when divided by 2,3,4,5,6, and 7, leaving the remainder as 1 in each case. - Relay teams
There are 159 students to be grouped into relay teams. Each team should have the same number of students. Can each team have 3,5 or 6 students? Explain. - Two pieces
Two pieces of cloth 15 and 20 meters long are to be cut into small pieces of equal lengths. What will be the greatest length of each piece? - Add five to lcm The least number, which, when diminished by 5, is divisible by each of 21, 28, 36, and 45.
- Known hcf and find lcm Given that HCF (306, 657) = 9, find LCM (306, 657).
- Field trip 2
A principal is organizing a field trip for more than 400 students. She has already arranged the transportation for 280 students. Each school bus has the capacity to transport 40 students. Find the number of school buses still needed to transport all of th - Greatest number What is the greatest number that will divide 62, 78, and 139, leaving remainders 2, 3, and 4, respectively?
- LCM or HCF Find the lowest common multiple of these two numbers: 105 226
- 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
- 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.
- Which 15 Which two digits need to be interchanged to make the following equation correct? 16+7*2+4-3=12 A) 2 and 4 B) 7 and 4 C) 16 and 2 D) 7 and 3
- Division with a remainder
Find the least number which when divided by 8, 12, and 20 leaves a remainder of 5 in each case. - GCD&LCM of three GCD of three numbers is 30 and LCM is 900. As two the are 60 and 150, find the number.
- 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? - 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.
- 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? - 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. - LCM and HCF 2 If the product of two numbers is 5780 and their HCF is 17, then what is their LCM?
- Unknown number 35 I am a number between 121 and 149. I can be divided by both 3 and 5. What number am I?
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