Grade - math word problems - page 415 of 968

Number of problems found: 19341

Bank withdrawal time
We will deposit € 10,500 at the bank at 1.1% interest, and we want to withdraw € 11,000. How many years do we have to wait? Round to 2 decimal places.
Population growth percentage
The population increased from 29,000 to 31,500 in 5 years. Calculate the average annual population growth in percents.
The six
The six boys will be led up the hill by a two-seater lift. How many options are there?
Service specification ways
There are 15 boys and 20 girls in the brigade. How many different services can be specified if one girl and two boys are on the service?
Card drawing ways
How many ways can you draw eight playing cards from 32 playing cards when their order doesn't matter?
Apprentice
A master craftsman helped an apprentice complete part of a task, and the apprentice completed the rest himself. It turned out that the time needed to complete the task was three times shorter than if the apprentice had completed the entire task himself. H
Ground level
The ground-level temperature in Helsinki is 20 °C lower than in London. The temperature in a basement flat in Helsinki is 5 °C below the temperature at ground level. If it is -29°c in the basement, what is the temperature in London?
Cube edge
Calculate the edge size of a 48 liter cube.
Team order possibilities
There are five good teams in the qualifying group for the World Cup. How many different orders can occur?
Medal division ways
Ten teams are playing in the Slovak hockey league. Gold, silver, and bronze medals are at stake. How many ways can it be divided?
Pillar - bricks
A brick pillar has the shape of a four-sided prism with an isosceles trapezoid base with parallel sides a = 55 cm and c = 33 cm, leg b = 33 cm, and trapezoid height vₐ = 32.1 cm. The pillar is 1.9 m high. How many bricks were used to build it if one brick
Hexaprism container
Calculate the volume and surface in the shape of a regular hexagonal prism with a height of 1.4 m, a base edge of 3 dm, and a corresponding height of 2.6 dm.
Cross-section of iron bar
What is the mass of an iron bar 1.5 m long, the cross-section of which is a rhombus with side a = 45 mm and a corresponding height of 40 mm? Iron density ρ = 7.8 g/cm³? What is the surface of the iron rod?
Buoyancy force
Find the magnitude of the buoyancy force acting on a body with a volume of 1 dm³ whole immersed: a) in water b) in ethanol.
Absolute value addition
Add the absolute values:
Six-eights
Six-eights of the one hundred pupils joined the Math Glee club. If the Math Glee club members were grouped into three, how many members were in each group?
Covid-19
Data showed that 22% of people in a small town were infected with the COVID-19 virus. A random sample of six residents from this town was selected. Find the probability that exactly two of these residents were infected.
Bronze alloy
Bronze is an alloy of tin and copper. Copper is 85% the rest is tin. How much bronze do we make from 51 kg of copper? Will 8 kg of tin be enough for us?
Machine defect probability
The machine produces one part in 2 minutes. The probability that it is defective is 0.05. What probability will the machine produce exactly ten defective parts per shift (8 hours)?
Doctors
The drug successfully treats 90% of cases. Calculate the probability that it will cure at least 18 patients out of 20.

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