Numbers - examples
- Dance ensemble
The dance ensemble took the stage in pairs. During dancing, the dancers gradually formed groups of four, six and nine. How many dancers have an ensemble?
- On the trip
On the trip were more than 55 children, but less than 65 children. Groups of 7 could be formed, but groups of 8 no. How many children were on a trip?
- Clock's gears
In the clock machine, three gears fit together. The largest has 168 teeth, the middle 90 teeth, and the smallest 48 teeth. The middle wheel turns around its axis in 90 seconds. How many times during the day do all the gears meet in the starting position?
- Double 5
Peter was thinking of a number. Peter doubles it and gets an answer of 8.6. What was the original number?
Roman is ranked 12th highest and eleventh lowest pupil. How many classmates does Roman have?
- Inverted nine
In the hotel,, Inverted nine" each hotel room number is divisible by 6. How many rooms we can count with three-digit number registered by digits 1,8,7,4,9?
12, 60, -300,1500 need next 2 numbers of pattern
- Domains of functions
F(x)=x2-7x and g(x)=5-x2 Domain of (fg)(x) is. .. . . Domain of (f/g)(x). ..
- Evaluate expression 2
Evaluate expression with negatives: (-3)+4+(-8)+(-6)+4+(-1)
Jana rose in the morning in the quarter to seven. She slept nine and a half hours. When did she go to sleep?
- PIN code
PIN on Michael credit card is a four-digit number. Michael told this to his friend: • It is a prime number - that is, a number greater than 1, which is only divisible by number one and by itself. • The first digit is larger than the second. • The second.
- Two buses
The first bus runs 15 minutes the second bus runs after 21 minutes. Together they both leave at 7:00 on Monday. When and what day will they meet?
- Degrees 2
The temperature was 3°F and falls four degrees Fahrenheit. What is actually temperature?
The container-shaped box with internal dimensions of 3.9 m, 3.25 m and 2.6 m was completely filled with goods in the same cubic boxes. How long edge could this box have?
- Written number
Place+values x ten thousands =30 thousands
Find the integer whose distance on the numerical axis from number 1 is two times smaller as the distance from number 6.
Solve equation with negatives: X/(-5) + 2 = -9
- Minimum surface
Find the length, breadth, and height of the cuboid shaped box with a minimum surface area, into which 50 cuboid shaped blocks, each with length, breadth and height equal to 4 cm, 3 cm and 2 cm respectively can be packed.
One brick is 6 kg and half a brick heavy. What is the weight of one brick?
Area of square garden is 6/4 of triangle garden with sides 56 m, 35 m and 35 m. How many meters of fencing need to fence a square garden?