# Diophantus

We know little about this Greek mathematician from Alexandria, except that he lived around 3rd century A.D. Thanks to an admirer of his, who described his life by means of an algebraic riddle, we know at least something about his life.
Diophantus's youth lasted 1/6 of his life. He had his first beard in the next 1/12 of his life. At the end of the following 1/7 of his life Diophantus got married. Five years from then his son was born. His son lived exactly 1/2 of Diophantus's life. Diophantus died 4 years after the death of his son.

How long did Diophantus live? [Diophantus epitaf]

Result

x =  84

#### Solution: 1/6* x + 1/12 * x + 1/7 * x + 5 + 1/2 * x + 4 = x

9x = 756

x = 84

Calculated by our simple equation calculator.

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:

Need help calculate sum, simplify or multiply fractions? Try our fraction calculator. Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar examples:

1. Dropped sheets Three consecutive sheets dropped from the book. The sum of the numbers on the pages of the dropped sheets is 273. What number has the last page of the dropped sheets?
2. Equation 15 Solve equation with variables on both sides:
3. Pizza 5 You have 2/4 of a pizza and you want to share it equally between 2 people how much pizza does each person get?
4. Unknown number 11 That number increased by three equals three times itself?
5. Unknown number 6 Determine x if 1/6 of x is equal to 2/5 of the number 24.
6. Mixed2improper Write the mixed number as an improper fraction. 166 2/3
7. Unknown number I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12.
8. Negative in equation 2x + 3 + 7x = – 24, what is the value of x?
9. Scouts 4 4/7 of the students in a school are boys. If 3/8 of the boys are scouts, how many scouts are there in a school of 1878 students?
10. Equation 29 Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )
11. Fractions 3 Calculate 1/9 of 27:
12. Pears There were pears in the basket, I took two-fifths of them, and left six in the basket. How many pears did I take?
13. Camp In the camp are children. 1/2 went on a trip, 1/4 went to bathe and 38 children remained in the room. How many children are in camp?
14. Equation Solve equation and check the result: 1.4x - 3/2 + x - 9,8 = x + 0,4/3 - 7 + 1,6/6
15. Double 5 Peter was thinking of a number. Peter doubles it and gets an answer of 8.6. What was the original number?
16. To improper fraction Change mixed number to improper fraction a) 1 2/15 b) -2 15/17
17. Fraction to decimal Write the fraction 3/22 as a decimal.