Water in vegetables

Tomatoes in the store contain 99% water. After being transported to the shop, they were slightly dried and contained only 98% of water. How many kgs of tomatoes are in the store if there were 300 kg in stock?`

Correct answer:

x =  150 kg

Step-by-step explanation:

$$\begin{gathered} S=(1-0.99)\cdot 300=3\text{ kg } \\ S=(1-0.98)\cdot x \\ x=S\mathrm{/}(1-0.98)=3\mathrm{/}(1-0.98)=150\text{ kg} \end{gathered}$$

Try another example

Related math problems and questions:

• Mushrooms
  Fresh mushrooms contain 94% water, dried 14%. How many kg of fresh mushrooms is needed to collect to get 10 kg dried?
• Mushrooms
  Fresh mushrooms contain 90% water, dried only 12%. How many kilograms of fresh mushrooms are needed for 5kg dried?
• Mushrooms
  Fresh mushrooms contain 88% water, dried 14% water. How many kilograms of fresh mushrooms should be collected to get 3 kg of dried?
• Apples 2
  Dried apples contain 15% water. Fresh apples contain 80% water. How many kg of apples we need buy in order to get 3 kg of dried apples?
• Coffee shop
  To the coffee shop brought 2 types of coffee totally 50 kg. The first type was CZK 220 per kilogram, coffee second type 300 CZK per 1 kg. For all the coffee trader earned CZK 12,000. How many kilograms of coffee of first type and how many kilograms of cof
• Mushrooms
  Mushrooms lose 90% by weight drying. How many fresh mushrooms are needed for 5 kg of dried mushrooms?
• Acid evaporation
  How many kilograms of water do we have to evaporate from 100 kg of 32% acid to make it 80% concentration?
• Barrel with liquid
  Barrel with grain weight 297 kg. When it shed 48% of grain, ha weight 174 kg. What is the weight of empty barrel?
• Distilled water
  Sea water contains 5% salt. How many distilled water should be pour to 40 kg of sea water so that the salt content is 2%. How many kilograms of 2% of sea water we get?
• Geography tests
  On three 150-point geography tests, you earned grades of 88%, 94%, and 90%. The final test is worth 250 points. What percent do you need on the final to earn 93% of the total points on all tests?
• Dried apples
  How many kilograms of fresh apples id needed to 120 kg of dried apples when from 0.4 tons of fresh apples we get 75 kg of dried apples?
• Barrel 3
  Barrel with water weights 118 kg. When we get off 75% of water, it weights 35 kg. How many kg has an empty barrel?
• Coffee
  Coffee merchant has coffee robusta and arabica species. 1 kg Robusta worth 450 CZK, Arabica 1 kg is 300 CZK more expensive. Calculate how many kilograms of Robusta and Arabica will need to produce 30 kg of the mixture so that the mixture cost is 490 CZK p
• Drying apples
  By drying, apples lose 85% of their weight. How many kgs of dried apples do we get from 820 kilograms of fresh?
• The water barrel
  The water barrel weighs 122 kg. If we pour 75% of the water out of it, it will weigh 35 kg. What is the weight of the barrel?
• Barrel 4
  Barrel of water weighs 63 kg. After off 75% water, the weight of the barrel with water is 21 kg. How many kg weigh empty barrel and how many kgs water in it?
• Container with water
  The weight of a container with water is 2.48 kg. If the cast 75% water, the container with water has a weight of 0.98 kg. Determine the weight of the empty container. How much water was originally in the container?