# Iron

Iron ore contains 54% iron. How much ore is needed to produce 25 tons of iron?

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- Briefcase

The cost of producing briefcase is € 45. The manufacturer wants to sell it at a profit 30%. For how much will briefcase sell? - 100 %

How much is 100%, if 75 % is 1431? - Conference

97 is the total number of employees. The conference was attended by 34 employees. How much is it in percent? - Energy saving

They were released three different, independent inventions saving 22%, 30% and 27% energy. Some considered that while the use of these inventions, the total savings will be 22% + 30% + 27% = 79%. Is this true? How much percent of energy will save all thre - TVs

Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase. - Seeds 2

How many seeds germinated from 1000 pcs, when 23% no emergence? - Class

In 7.C clss are 10 girls and 20 boys. Yesterday was missing 20% of girls and 50% boys. What percentage of students missing? - The percentages in practice

If every tenth apple on the tree is rotten it can be expressed by percentages: 10% of the apples on the tree is rotten. Tell percent using the following information: a. in June rained 6 days b, increase worker pay 500 euros to 50 euros c, grabbed 21 fro - Number

What number is 24 % smaller than the number 51? - Class

In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class? - Sales off

Goods is worth € 31 and the price of goods fell two weeks in a row by 10%. How many % decreased overall? - Base, percents, value

Base is 344084 which is 100 %. How many percent is 384177? - Apples 2

James has 13 apples. It has 30 percent more apples than Sam. How many apples has Sam? - Gloves

I have a box with two hundred pieces of gloves in total, split into ten parcels of twenty pieces, and I sell three parcels. What percent of the total amount I sold? - Human buying irrationality

I longer watch processors for Socket A on ebay, Athlon XP 1.86GHz with a PR rating of 2500+ costs $7 and Athlon XP 2.16Ghz with a PR rating of 3000+ currently cost $16. Calculate: About what percentage of the Athlon XP 2.16Ghz is powerful than Athlon X