Ratio - math word problems - page 79 of 81
Number of problems found: 1617
- Pipeline
How much percent has the pipe cross-section area changed (reduced) if the circular shape is changed to square with the same perimeter?
- Money
Everyone complains about the lack of money. There is no shortage of money but a relative scarcity of goods and things people buy for the money. Calculate what percentage of the price of all goods and services immediately rose if everyone has the day-to-da
- Pumps
The tank is filled with two pumps in 23 minutes. The first pump is filled in 37 minutes earlier than the second one. How many minutes is filled with the first pump?
- Center traverse
Does the middle traverse indeed bisect the triangle?
- Ratio v2
Decrease in the ratio 8:16 number 20.2.
- Ratio
Increase the number 25.6 in the ratio 7:4.
- Pipes
The water pipe has a cross-section 1903 cm². An hour has passed 859 m³ of water. How much water flows through the pipe with cross-section 300 cm² per 11 hours if water flows at the same speed?
- Gear wheels
Two gear wheels, which fit together, have the number of teeth z1=43 and z2=154. Calculate the speed of the first wheel if the second wheel rotates 766 revolutions per minute.
- Minute angle
Find the size of the angle, which takes a minute hand for 30 minutes.
- Tree trunk
Calculate the average tree trunk with a circumference of 192 cm.
- Train
The train passes part of the line for 95 minutes at a speed of 75 km/h. What speed would you have to go to shorten the driving time of 20 minutes?
- Sphere cuts
At what distance from the center does the sphere intersect with the radius R = 46 plane if the cut area and area of the main sphere circle are in ratio 2/5?
- DIY press
Under the socialist regime, in some socialist countries, owning a typewriter required special permission. That has hindered the spread of DIY literature (manually transcribed through carbon copy paper for typewriters). Calculate how many typewriters today
- Thrift woman
Calculate how long grandmother will save on new shoes priced 116 euros if she saves 2 Eur monthly.
- Car range
Kia has an average diesel consumption of 5.2 liters per 100 kilometers. What is the range of the car for 138 euros if fuel costs 1.3 EUR/liter, if the tank has a volume of 64 liters?
- Median
The median of the triangle NOP is away from vertex P 95 cm. Calculate the length of the median, which start at P.
- Forest nursery
In the Forest nursery plant, one borovice to 2 m². Calculate how many plants are planted in the area of 510 acres.
- Fuel consumption
Kia car has an average nafty consumption of 6.4 liters per 100 kilometers. What is the car range for a full tank of volume 71 liters?
- Wood in the forest
The amount of wood in the forest was estimated at 6000 m³. How much wood will be in the forest after 2 years if the annual growth of wood is 2.5% each year and logging 30 m³ each year?
- Carbon dioxide
Calculate how many grams of oxygen are in 59 grams of carbon dioxide CO2. The relative atomic mass of oxygen is 16, and of carbon is 12.
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