Ratio + direct proportionality - practice problems - page 17 of 18
Number of problems found: 354
- Medicament
Many manufacturers produce the same type of medicament in various packages with different active substance content. Pack 1: includes 60 pills of 600 mg of active substance per pack cost 31.5 Eur. Pack 2: includes 100 tablets of 1200 mg of active substance - Map
On the tourist map, on a scale of 1:100000 is the distance between two points along a straight road 8.9 cm. How long travels this distance on a bike at 25 km/h? Time express in minutes. - Forestry workers
41 laborers have employed planted trees in the forest. For 7 hour work, a day would end job in 32 days. After 12 days, 7 laborers go forth? How many days are needed to complete planting trees in nurseries by others if they work 8 hours a day? - Excavation
Mr. Vendelín calculated that excavation for a water connection digs for 10 days. His friend would take 10 days. Vendelín worked 3 days alone. Then his friend came to help and started on the other end. On what day since the beginning of the excavation they
- Bonus
The gross wage was 1323 USD, including the 25% bonus. How many USD were bonuses? - Scale
The swimming pool is long 50 m and 30 m wide. The city's plan is shown as a rectangle with an area 2.4 cm². What scale is the city plan? - Coffee
In stock are three kinds of branded coffee prices: I. Kind. .. .. .205 Kc/kg II. Kind. .. .. .274 Kc/kg III. Kind. .. .. 168 Kc/kg Mixing these three species in the ratio 8:5:6 creates a mixture. What will the price of 100 grams of this mixture be? - Two squares
Two squares with sides in the ratio 3:7 have a sum of their perimeters 58 cm. Calculate the sum of the area of these two squares. - Car factory
The carmaker now produces 2 cars a day more than last year, so the production of 70312 cars will save just one full working day. How many working days were needed to manufacture 70312 cars last year?
- Rectangular cuboid
The rectangular cuboid has a surface area 4131 cm², and its dimensions are in the ratio 2:4:5. Find the volume of this rectangular cuboid. - TV fail
After 10,000 hours, the TV has an average of 15 failures. Find the probability of TV failure after 500 hours of operation. - Pediatrician
Pediatrician, this month of 24 working days takes 6 days holidays. What is the probability that it will be at work on Monday? - Beer
After three 10° beers consumed in a short time, there is 5.6 g of alcohol in 6 kg adult human blood. How much is it per mille? - Youth track
Youth track from Hronská Dúbrava to Banská Štiavnica, which announced cancellation attracted considerable media attention and public opposition, has cost 6.3 euro per capita and revenue 13 cents per capita. Calculate the size of subsidies to a trip group
- Arc
The circle arc corresponding to the angle is 32° is 28 dm long. What is the length of the entire circle? - Gimli Glider
Aircraft Boeing 767 lose both engines at 35000 feet. The plane captain maintains optimum gliding conditions. Every minute, lose 2100 feet and maintain constant speed 201 knots. Calculate how long it takes for a plane to hit the ground from engine failure. - Chickens
4 chickens give 4 eggs in 4 days. How many eggs can 8 chickens be given for 8 days? - Gear
Two gears fit into each other and have a transfer of 1:2. The centers of gears are spaced 96 cm. What are the radii of the gears? - ŽSR
Calculate fixed annual personnel costs of operating monorail line 115 km long if every 7 km is a station that serves three people - one dispatcher and two switchmen in 4-shift operation. Consider the average salary of the employee 829 euro.
Calculate how many average minutes the web server is unavailable a year if the availability is 99.9999%.Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
