Math word problems

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

• Brigade
  On a weekly forest brigade operates 12 students. After plant one hundred spruces get x CZK, anfter one hundred pines y CZK. How many CZK got one student for one day if planted spruces 25000 and 30000 pines week?
• Charles Bridge
  Charles Bridge was 15 times older than Frantův bridge from 1900 in 1931. How old is the Charles Bridge?
• Coordinates of a centroind
  Let’s A = [3, 2, 0], B = [1, -2, 4] and C = [1, 1, 1] be 3 points in space. Calculate the coordinates of the centroid of △ABC (the intersection of the medians).
• Greenhouse
  Garden plastic greenhouse is shaped half cylinder with a diameter of 6 m and base length 20 m. At least how many m² of plastic is need to its cover?
• Foot area
  Which animal will leave deeper footstep: an elephant weighing 5 tons with a total foot area of 0.5 square meters, or a gazelle weighing 10 kg and a foot area of 50 cm square?
• Geometric progression 4
  8,4√2,4,2√2
• Three friends
  Three friends squirrels together went to collect hazelnuts. Zrzecka he found more than twice Pizizubka and Ouska even three times more than Pizizubka. On the way home they talked while eating and was cracking her nuts. Pizizubka eaten half of all nuts whi
• Isosceles
  Isosceles trapezium ABCD ABC = 12 angle ABC = 40 ° b=6. Calculate the circumference and area.
• Nine balls
  Imagine that you have exactly the same appearance nine balls of which one has a greater mass than the other. You have isosceles weights. Post a procedure as you would using a weights to discover heavier balls. How many measurements at least you have to do?
• Painters
  Five painters painting the fence for eight days. How many days over will take work if paint the fence only four decorators?
• Built-up area
  John build up area 5 x 7 = 35 m² with building with a wall thickness 30 cm. How many centimeters would have to subtract from thickness of the walls that built-up area fell by 9%?
• Glass aquarium
  How many m² of glass are needed to produce aquarium with bottom dimensions of 70 cm x 40 cm and 50 cm high?
• 925 USD
  Four classmates saved an annual total 925 USD. The second save twice as the first, third 35 USD more than the second and fourth 10 USD less than the first. How USD save each of them?
• Short cut
  Imagine that you are going to the friend. That path has a length 120 meters. Then turn doprava and go another 630 meters and you are at a friend's. The question is how much the journey will be shorter if you go direct across the field?
• Borrowing
  I borrow 25,000 to 6.9% p.a.. I pay 500 per month. How much will I pay and for how long?
• Speeds
  George pass on the way to school distance 200 meters in 165 seconds. What is the average walking speed in m/s and km/h?
• Trucks
  Truck take you the some amount of clay in 30 hours. Second truck in 40 hours. Trucks carted the clay away some time together then the second truck broke down and the first one completed the job in five hours. What time worked together?