Math word problems

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

• Toys
  3 children pulled 12 different toys from a box. Many ways can be divided toys so that each children had at least one toy?
• AM of three numbers
  The number 2010 can be written as the sum of 3 consecutive natural numbers. Determine the arithmetic mean of these numbers.
• Two trains
  There are two trains running the same distance. 1st train will travel it in 7 hours 21minutes. 2nd the train will travel 5 hours 57minutes and 34 seconds and it is 14 km/h faster than the first train. What are speeds of trains and how long is this railway
• Cross five
  The figure on the picture is composed of the same squares and has a content of 45cm². What's his perimeter?
• Vector perpendicular
  Find the vector a = (2, y, z) so that a⊥ b and a ⊥ c where b = (-1, 4, 2) and c = (3, -3, -1)
• Water tank 2
  Water tank cuboid is 12 meters long and 6.5 meters wide and 1.2 meters high. How many hectoliters are in the tank when it is filled to 81%?
• Mr. Zucchini
  Mr. Zucchini had a rectangular garden whose perimeter is 28 meters. Content area of the garden filled just four square beds, whose dimensions in meters are expressed in whole numbers. Determine what size could have a garden. Find all the possibilities an
• Lcm simple
  Find least common multiple of this two numbers: 140 175.
• Expansion
  If one side of the rectangle is larger 4-times and second 2-times, what percentage increases the area of rectangle?
• Unknown numbers
  The sum of two consecutive natural numbers and their triple is 92. Find these numbers.
• Water lilies
  Water lilies are growing on the pond and their number is doubled every day. The whole layer is covered in 12 days. How many days will it cover 8 layers?
• Cubes
  Most how many cubes with an edge length of 5 cm may fit in the cube with the inner edge of 0.4 m?
• AS sequence
  In an arithmetic sequence is given the difference d = -3 and a₇₁ = 455. a) Determine the value of a₆₂ b) Determine the sum of 71 members.
• Cuboid
  The volume of the cuboid is 245 cm³. Each cuboid edge length can be expressed by a integer greater than 1 cm. What is the surface area of the cuboid?
• Trapezium
  The area of trapezium is 35 cm². Find its altitude if the bases are 6cm and 8 cm.
• Simple equations
  Solve system of equations: 5x+3y=5 5x+7y=25
• The mast
  A 40 m high mast is secured in half by eight ropes of 25 m long. The ends of the ropes are equidistant from each other. Calculate this distance.