Apples investment

The merchant bought a certain amount of apples and paid one denarius for every seven apples. The next day he sold all the apples for one denarius for five pieces and earned 12 denarii. How many apples did he originally buy, and how many did he have to invest in this business?

Correct answer:

x =  210
y =  30

Step-by-step explanation:

1/5 x1/7 x=12  2x=420  x=2420=210  x=210
y=1/7 x=1/7 210=30

Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips for related online calculators
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: