Percentages - practice for 13 year olds - page 55 of 56
Number of problems found: 1105
- Window
Peter demolish a box hole in the wall for the window frame 147×51 cm. When they come, they will find a master-fitted frame and window that glass is 13.3 cm from the hole in each direction. Calculate how much percent less light enters the window than - VAT
VAT is a tax on which the state artificially betrays goods and services for final consumption. VAT in Slovakia is 20%. Calculate how much percent pay fewer tax residents of Japonska, when VAT is only 5%. - Discounts on rail (ZSSK)
The railway company ZSSK offers a discount of 15% (REGIONAL) for 5 Eur/year. Calculate the real discount rate as a percentage, where passengers will travel 19 Eur per week. - Solidarity
Imagine a word solidarity means that salt donation to the needy, who have neither the salt. If we take the word solidarity has a word base on salt + gift (only in the Slovakian language). Calculate how many kilos of salt a sympathetic citizen "gives" gove
- Sphere fall
How much percent fall volume of a sphere if diameter decreases 3×? - 3y inflation
The price of the roll rise in the first year by 9%, the second year fell by 5%, and in the third year increased by 3%. Calculate the average annual increase in the price of the roll. - Inflation
Once upon a time, the tsar owned a money printer and printed and printed. Printing money prices went up in the first year 2.7 %, in the second 2.1%, in the third 3.6%, and in the fourth 5.4%. Then tsar failed in the election. Calculate the average annual - Insurance
The house owner is insured against natural disasters and pays 0.04% annually of the value of the house 76 Eur. Calculate the value of the house. Calculate the probability of disaster if you know that 41% of the insurance is to pay damages. - Two doctors
Doctor A will determine the correct diagnosis with a probability of 89% and doctor B with a probability of 75%. Calculate the probability of proper diagnosis if both doctors diagnose the patient.
- Slovak broad track
Once upon a time, we learned in school that the Russians have "wider" tracks than ours because they have less tolerable ground. In truth, decide only the area of sleepers, no track gauge. Calculate how many millimeters our track is 1435 mm, different from - Cone in cylinder
The cylinder is an inscribed cone. Find the ratio of the volume of the cone and cylinder. Please write the ratio as a decimal number and as a percentage. - Cone in cube
The cube is an inscribed cone. Determine the ratio of the volume of cone and cube. Please write the ratio as a decimal number and as a percentage. - Lunch for free
Gastro tickets are "free," so it should retain them. Goods for free approve by many employees in Slovakia. Such as a free gastro ticket per day work. The company issuing gastro tickets gets a 4.9% fee of the total amount of money for tickets. Calculate ho - Farmer
The farmer is farming 293 ha of arable land, and the remaining 20% are meadows and pastures. How much land does the farmer own?
- Cube wall
The surface of the first cube wall is 64 m². The second cube area is 40% of the surface of the first cube. Find the length of the edge of the second cube (x). - Percentages and numbers
How many percent is number 69 smaller than number 276? - Percent calculation
Calculate 8% if 44% is 32. - Car inflation
What percentage of car price increases if the price rises from €1880 to €2200? - Acid
The barrel is 199 liters of 38% acid. How many percent of acids occur when 61 liters revoke and replaced with the same amount of water?
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