# Percent practice

Percentage is a way of expressing a number, especially a ratio, as a fraction of 100. See also our verbal problems in percent orexamples1, examples2, examples3, examples4, examples5.

Calculate:

### Percentage in word math problems

- Demographics

The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase in population? - Accidents

The count of accidents in 1995 caused 8780 women, which is 8.4%. How many men caused the accidents? - Green - Red

We have 5 bags. Each consists of one green and 2 red balls. From each, we pull just one ball. What is the probability that we don't pull any green ball? - UV radiation

The glass of 1 mm thickness absorbs 5.3% of UV radiation passing through. How many percent of UV rays absorb glass with a thickness of 2.3 cm, made from 1 mm thick those glasses?

- Climb in percentage

The height difference between points A and B is 475 m. Calculate the percentage of route climbing if the horizontal distance between places A and B is 7.4 km. - Earth's surface

The greater part of the Earth's surface (r = 6371 km) is covered by oceans; their area is approximately 71% of the Earth's surface. What is the approximate area of the land? - Triangle SSA

Construct a triangle ABC if |AB| = 5cm v_{a}= 3cm, CAB = 50 °. It is to create the analysis and construction steps. - Nectar

Nectar collected by bees contains 70% water. The nectar of the same process produces honey which has 19% water. How many kilograms of nectar do bees need to collect to make 1 kg of honey? - Backpack

A large backpack costs CZK 1352. Little is 35% cheaper. How much do we pay for five large and two small backpacks?

- Materials 2550

The company has an actual stock of materials of EUR 1,568,900, of which 8.6% is accounted for by excess stock. How much is Eur? - Kilograms 3094

1.5 kg of a 20% NaCl solution should be diluted to a 10% solution with water. How much water will we need, and how many kilograms of diluted solution will we get? - The deposit

A deposit has been placed for one year at an annual rate of 4.5%. The amount rose to € 2,612.5 after one year. Find initial deposit. - Weightlifter

Weightlifter lifted 75% of its weight. Determine how much weight is lifted when he weighs 132 kg. - Specify 3808

Specify a number that is 61% less than 10².

- Solution 4284

How many grams of table salt and water do we weigh to prepare 500 g of a 15% solution?

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