Math word problems

Mathematical word problems allow you to practice your knowledge of mathematics in tasks of everyday life. Examples train understanding, translation into the mathematical language (eg equations), solve it, check the accuracy and solution discussion.
Choose a topic you want to calculate and improve in.

From our database of math word problems and examples we offer:

• Metallurgical enterprise Metallurgical company daily produces 318 tons of cast iron. How many tons of coke it burns to melt cast iron when 10 tons of cast consumes 6 tons of coke? Solve quadratic equation: 2x2-58x+396=0
• Swing A child weighing 12 kg is sitting on a swing at a distance of 130 cm from the axis of rotation. How far away from the axis of rotation (center) must sit down his mother weighs 57 kg if she wants to be swing in balance?
• Down syndrome Down syndrome is one of the serious diseases caused by a gene mutation. Down syndrome occurs in approximately every 550-born child. Express the incidence of Down's syndrome in newborns at per mille.
• Yogurt The board is 35 yogurts. How many boards of yogurts must be ordered for 886 people in the canteen?
• Area to volume If the surface area of a cube is 486, find its volume.
• Air mass What is the weight of the air in a classroom with dimensions 10 m × 10 m × 2.7 m ? The air density is 1.293 kg/m3.
• Employees Of all 360 employees, there are 11/12 women. How many men work in a company?
• Diagonal Calculate the length of the diagonal of the rectangle ABCD with sides a = 8 cm, b = 7 cm.
• Euclidean distance Calculate the Euclidean distance between shops A, B and C, where: A 45 0.05 B 60 0.05 C 52 0.09 Wherein the first figure is the weight in grams of bread and second figure is price in USD.
• Circumference - a simple What is the ratio of the circumference of any circle and its diameter? Write the result as a real number rounded to 2 decimal places.
• Triangular pyramid It is given perpendicular regular triangular pyramid: base side a = 5 cm, height v = 8 cm, volume V = 28.8 cm3. What is it content (surface area)?
• Subsets How many 19 element's subsets can be made from the 26 element set?
• Reciprocal For given real numbers, calculate reciprocal number. A radioactive material loses 10% of its mass each year. What proportion will be left there after n=6 years? How many 50-cent coins must be put in a row that next 50-cent coins after them (above) rolled on it axis? In a circle with radius r=60 cm is chord 4× longer than its distance from the center. What is the length of the chord?