Latest problems - page 12
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?
- Barrel with water
The water barrel has a weight of 52 kg. When we pour a quarter of the water, the weight of the barrel is reduced to 40 kg. Determine the weight of the empty barrel.
- Air thermal
Imagine that a unit of air rises at 3000 meters high, if temperature decreases 6 degrees celcius for every 1000 meter, what will be its temperature at 1400 meters, 2000 meters, 2500 meters and when it reaches the 3000 meter elevation. Starting temperature.
- Written number
Place+values x ten thousands =30 thousands
Seven bricklayers will build the house in 630 days. How many bricklayers do we need to take after 150 days to complete the building for (additional) 336 days?
- Equations - simple
Solve system of linear equations: x-2y=6 3x+2y=4
Find the integer whose distance on the numerical axis from number 1 is two times smaller as the distance from number 6.
- Sum of fractions
What is the sum of 2/3+3/5?
- Is right triangle or not
If right triangle ABC, have sides a=13, b=11.5, c=22.5. Find area.
- Slant height
The slant height of cone is 5cm and the radius of its base is 3cm, find the volume of the cone
- Eq with reciprocal
Solve given equation with reciprocal member: a-6/a+10=4/8
- Land area 2
A land area was divided among the three heirs in the ratio 5:2:4. If the largest share was 20 hectares of land, what is the total area of land? Please show your solution and what kind of proportion is this please
- Proportion 2
A car is able to travel 210 km in 3 hours. How far can it travel in 5 hours? Put what kind of proportion is this and show your solution.
- Reciprocal equation 3
Solve reciprocal equation: 1/2 + 2/3=1/x
A job placement agency in Mumbai had to send ten students to five companies two to each. Two of the companies are in Mumbai and others are outside. Two of the students prefer to work in Mumbai while three prefer to work outside. In how many ways assignment
- A perineum
A perineum string is 10% shorter than its original string. The first string is 24, what is the 9th string or term?
- Together 3
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?
- Nineteenth member
Find the nineteenth member of the arithmetic sequence: a1=33 d=5 find a19
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.