# Masons

1 mason casts 30.8 meters square in 8 hours. How long casts 4 masons 178 meters square?

**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:

- Runner 2

Marian run 12 meters in 8 seconds. How far would Marian run for 70 seconds, if still run at the same pace? - Diplomas

Suzanne helped write out diplomas. Issuance its first took 3 minutes, each next 2.3 minutes. How much time it will take to write out n=16 diplomas (including the first), write out this pace? - Grandfather and grandmother

The old mother is 5 years younger than the old father. Together they are 153 years old. How many years has each of them? - Greg and Bill

Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill? - Pills

If it takes 20 minutes to run a batch of 100 pills how many minutes would it take to run a batch of 50 pills - Six years

In six years Jan will be twice as old as he was six years ago. How old is he? - Scale of the map

Determine the scale of the map if the actual distance between A and B is 720 km and distance on the map is 20 cm. - Donuts

Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8 - 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 - MO 2016 Numerical axis

Cat's school use a special numerical axis. The distance between the numbers 1 and 2 is 1 cm, the distance between the numbers 2 and 3 is 3 cm, between the numbers 3 and 4 is 5 cm and so on, the distance between the next pair of natural numbers is always in - Unknown number

Identify unknown number which 1/5 is 40 greater than one tenth of that number. - Apples 2

James has 13 apples. He has 30 percent more apples than Sam. How many apples has Sam? - Inequation

Solve the inequation: 5k - (7k - 1)≤ 2/5 . (5-k)-2 - Down syndrome

Down syndrome is one of the serious diseases caused by a gene mutation. Down syndrome occurs in approximately every 550-born child. Express the incidence of Down's syndrome in newborns at per mille. - Conference

148 is the total number of employees. The conference was attended by 22 employees. How much is it in percent? - Base, percents, value

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

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