Rounding - math word problems - page 16 of 29
Number of problems found: 574
- Angles of elevation
From points A and B on level ground, the angles of elevation of the top of a building are 25° and 37°, respectively. If |AB| = 57 m, calculate, to the nearest meter, the distances of the top of the building from A and B if they are both on the same side o - Video game
Nicole is playing a video game where each round lasts 7/12 an hour. She has scheduled 3 3/4 hours to play the game. How many rounds can Nicole play? - Seven numbers
Write seven 4-digit numbers divisible by three and at the same time by 4. - Triangle circumference puzzle
Christina chose a certain odd natural number divisible by three. Jacob and David then examined triangles with a perimeter in millimeters equal to the number selected by Christina and whose sides have lengths in millimeters expressed by different integers. - Concrete curb
The concrete curb has a width of 20 cm at the bottom and 15 cm at the top. It is 20cm tall. Its length is 80 cm. The density of concrete is p=2100kg/m³. How many can Mr. Havlík load on a trailer for a car if the trailer has a load capacity of 400 kg? - Chester
Chester has a piece of wood measuring 1 2/3 cm. He needs to cut it into pieces measuring 3/4 cm long. How many pieces of wood did Chester cut? - Circular section area
Calculate the area of a circular section given by an angle of 220 degrees if the circle's radius is 20 cm. Round the result to cm2 - Seven workers Seven workers clear the glade in 22 hours. How many workers would be needed to complete the task in 8 hours?
- Curiosity factor
A blogger starts a new website. Initially, the number of visitors was 293. The owner estimated that traffic would increase by 2.6% per week. What will the number of visitors be in week 5? - Masquerade ball
Marie wants to make a cone-shaped witch's hat for a masquerade ball. How much material will it need if it counts on an annular rim with diameters of 28 cm and 44 cm? The hat side length is 30 cm. Add 5% of the material to the bust. Round to cm². - Isosceles triangle 8
If the rate of the sides of an isosceles triangle is 7:6:7, find the base angle correct to the nearest degree. - Saving for an apartment
The Adamec, Benda and Cibulka families began saving for an apartment priced at 750 000 Kč in January 1997. The Benda family had 250 000 and save 4 000 Kč monthly; the Adamec family had 370 000 Kč (Kč is Czech crown) and save 6 000 Kč monthly; the Cibulka - Seed germination
Seed germination is 80%. 8% of the germinated plants subsequently die. How many seeds does a gardener have to sow in order to grow 2,000 plants? - A screen
A screen has a resolution of 1,680 × 1,050 pixels. What are the coordinates and dimensions (in pixels) of the central rectangular area that is exactly 33% of the screen's size? - Ten cashiers
Ten cashiers are open at Tesco. Customers wait an average of 15 minutes. How many other cashiers have to open to reduce the waiting time by 4 minutes? - Velocipedes
In the 19th century, bicycles had no chain drive, and the wheel axis connected the pedals directly. This wheel diameter gradually increased until the so-called high bikes (velocipedes) had a front-wheel diameter of up to 1.5 meters, while the rear wheel w - Carrot seed
Carrot seed germination is 85%, and the weight of 1000 carrots seeds is 2.4g. How many seeds are likely to germinate if we sow 8g of seeds? - Hemisphere of ice-cream
The ice cream maker sold 6l of ice cream a day. How many hemisphere-shaped portions with a diameter of 6 cm could he make from the ice cream sold? - Diameter of a cylinder
The diameter of the cylinder is 42 cm. How many times does the cylinder turn on a 66 meters long track? - Ant ruler running
A frightened ant runs along a 16 cm long ruler at a constant speed of 1 cm per second. He always turns around and runs back after reaching the end of the ruler. Each turn takes 1 second. He started running from the left corner. Next, how many numbers will
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