Problem number 26 of the Rhind Papyrus says: Find a quantity such that when it is added to of itself the result is a 15. The mod
2 answers:
Answer: The required quantity is 7.5.
Step-by-step explanation: We are given to solve the following problem by Rhind Papyrus :
To find a quantity such that when it is added to itself, the result is a 15.
Let x represents the required quantity. Then, the modern day equation that models this problem will be
The solution of equation (i) is as follows :
Thus, the required quantity is 7.5.
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For this case we have that by definition, a direct variation is given by:
Where:
k: It is the constant of proportionality of the variables.
On the other hand, we have that the inverse variation is given by:
Where:
k: It is the constant of proportionality of the variables.
In this way, the correct option is:
ANswer:
Option A